bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Development of Budgeting Module on Android based on Backpacker BackInd Applications: Sorting and Filtering Features
Authors: Tampubolon Yoel F. , Andreswari Rachmadita , Lubis Muharman 
Published: May 2020

Abstract
Decision making problems often occur in tourists to determine the activity within the tourist destinations or location. For tourists, information about attractions also is needed to allow their planning to be precise and meaningful. The BackInd (Backpacker Management System) have been developed as an application to help and support tourists by providing comprehensive information about tourist attractions through filtering and sorting mechanism. In addition to provide those type of information, tourists also allowed to buy tickets directly without much more burden to wait physically in that attractions counter. The development of this application is expected to help tourists get recommendations based on their preferences that are in accordance with the budget of the travellers. Thus, this study uses the Rapid Application Development (RAD) method, which the results focused on the featured added to the application in term of sorting, filtering and budgeting features so the homestay that tourist want will match accordingly with their plan.
Effect of Small Amount SiC on Mechanical Properties Composite Fabricated by Casting and Subsequent Rolling Process
Authors: Tugiman  , Ariani F , Arbi M Z , Hermawan R , Iswara K Y 
Published: May 2020

Abstract
Aluminum matrix composites (AMCs) are promising material to develope for engineering application in last a few decade. Combination between aluminum matrix and reinforced particles was succesfull increase the mechanical properties. Casting method have been used to fabricate the AMCs due to their simple process and low cost, however the nonuniform distribution elements and some defects were often observed in the microstructure by this traditional casting process. Furthermore, these problems have influenced the mechanical properties of composites. In other hand, the thermomechanical treatment and dispertion strengthening by particles such SiC are attractive technique to improved mechanical properties of composite such AMCs. Thermomechanical such rolling process was successfully modified the properties of composite, high energy from rolling machine induced plastic deformation and grain refinement of microstructure. The modification of this microstructure is the important role to enhance the mechanical properties. The aim of this research to investigate the effect of rolling process on microstructure and mechanical properties of aluminum cast reinforced with SiC particles. In the current work, Al-Si alloy ingot used as a matrix and reinforced with SiC particles for different composition (1.5, 2.0, 2.5 wt.%). Remelted ingot and SiC have been done in crucible grafite to prevent from contaminant. Composites material were fabricated by using pressure casting at 35 MPa, 657°C pouring temperature and the permanent mold made from mild steel with holding temperature 300°C. Further, a hot rolling process was performed at 550°C with 20% thickness reduction through multi pass process to obtain the thickess of sheets. The microstructure of composites were investigated by optical microscope (OM) with different magnification. Brinell hardness test was carried out to obtained the hardness on the surface of composites rolled. The impact test was conducted in room temperature by using charpy model. Furthermore, the ultimate tensile strength of composites were perfomed by universal tensile machine. The results shows the increase of SiC particles upto 2.5 wt.% promoted the finer microstructure was observed after rolled. Further, the sligthly increase both of hardness and tensile strength have been achieved after hot rolling with different silicone particle. The maximum hardness 71 HB of composite rolled was obtained for 2.5 wt.% SiC. The impact strength 19 joule was observed in 2.0 wt.% SiC and sligthly decrease with the increasing of silicone carbide. In other hand, the ultimate tensile strength 130 MPa was obtained for 2.5 wt.% SiC, the addition of a small amount SiC promote a slightly change the mechanical properties.
Environmental Sensor Assessment for a Light Quadcopter Drone
Authors: Suherman Suherman , Ananda Rizky , Pinem Maksum 
Published: May 2020

Abstract
This paper presented drone design and environmental sensor assessment. The assessment was conducted for temperature and pressure. The measurements were performed offline and online. Offline measurement was by locating drone inside a controlled chamber, while online measurement was when drone is flying. Assessment shows that there were significant error differences in temperature, where offline drone exerted only 0.75% error, but online drone produced 6.23% error. Error increases as temperature increases. Pressure assessment exerted a slight error different between offline and online drone, 0.16% and 0.17%.
Comparison study of user experience between virtual reality controllers, leap motion controllers, and senso glove for anatomy learning systems in a virtual reality environment
Authors: Fahmi F , Tanjung K , Nainggolan F , Siregar B , Mubarakah N , Zarlis M 
Published: May 2020

Abstract
Virtual Reality (VR) can be used as an assistive system to learn with immersive visualization and interactive control. Anatomy is a branch of biology that is difficult to learn using textbooks because of its limitations in displaying anatomical objects in two-dimensional media. VR can display anatomical objects in the form of a three-dimensional virtual world. Besides being assisted by its immersive appearance, the interactivity learning system can also be improved by using the appropriate VR control device. In this study, three controls were used with different features and functions, namely VIVE Controller, Leap Motion Controller, and Senso Glove, and a user experience study was conducted. The user was asked to use the anatomy learning system with three different control devices, and then the user was asked to fill out a survey form, which uses the Liker scale. The survey focuses on the level of acceptability and user satisfaction in the usability factor, ease of learning, the suitability of movement, suitability of display, and haptic feedback provided by each VR controllers. From this study, it was found that the VIVE Controller is superior compared to the Leap Motion Controller and Senso Glove in terms of usability, ease of learning, movement suitability, and display suitability. The senso glove is superior in terms of haptic feedback satisfaction.
Standard Distance Detector Tool for TV users based on Fuzzy Decision Tree
Authors: Iswanto  , Maharani Raharja Nia 
Published: May 2020

Abstract
Eye health is a very important thing, so it is fitting that we take good care of it. With the frequent viewing of television programs, we should be able to maintain eye health from the effects of light released by a TV tube that can make our eyes tired quickly which can interfere with daily activities. This standard distance detector device based on microcontroller TV users is designed and uses ultrasonic sensors and PIR sensors as detectors, so that it can anticipate fatigue in the eye due to television viewing distance that is too close. The design of this tool uses the literature study method, by conducting library research to obtain a theoretical foundation from supporting books, internet, articles, journals and exchanging ideas with people who are experienced in the field of electronics. The results of the design of a Standard Distance Detector Microcontroller-based TV Users are devices that can measure and detect safe distances for the eyes in watching television activities, based on the size of television resolution. With the security of using electronic equipment that has been designed, so that in its implementation can minimize cases of damage to eye health in the general public as a whole.
Inventory Optimization in the Cigarette Industry
Authors: Siregar I , Rizkya I , Sari Rahmi M , Syahputri Khalida 
Published: May 2020

Abstract
The increasing cigarette industry makes cigarette-producing companies continue to make improvements in inventory planning determination continuously in order to improve the effectiveness and efficiency of the company. The company sets the number of production based on a rough estimate of consumer demand in previous periods. This causes an imbalance between the company’s production capacity and the number of demands for consumers. A large accumulation of inventory causes a high carrying cost. The incompatibility in the number of demands with the quantity produced results in the emergence of the other costs so that the company loses the opportunity to get maximum profit. Therefore, it is necessary to analyse the inventory quantity to reduce carrying costs. The company optimizes the inventory quantity based on the concept of the Economic Order Quantity using the quantity of safety stock as a minimum inventory point so that the company can plan the production number in the next periods. The results showed that with the proposed inventory system a total cost savings carrying cost of IDR 722.795.625 obtained.
Seismic micro-zonation framework for earthquake risk in Medan-North Sumatera Indonesia using geotechnical engineering survey
Authors: Rahayu Teguh , Mulya Miswar Budi , Ainun Ayun Ria , Sinambela Marzuki 
Published: May 2020

AbstractThe micro zonation is very essential to identify the tectonic and geological formation in the study area, and still fundamental for determining the seismic source and establishing a realistic earthquake hazard model. Indonesia is located in the Pacific Ring of Fires, it is constantly at risk of earthquakes, tsunamis, and the eruption of volcanic. In this case, we focused to review the previous study of micro zonation in Indonesia and making the framework of micro-zonation for earthquake risk in Medan-North Sumatra, Indonesia. The goal of this study to illustrate the diversity of methodologies presently in use for the preparation of seismic hazard maps and to evaluate basic principles of zonation for different purposes and at different scales in new planning in Medan, North Sumatera. We select the micro zonation methods and looking for the opportunity for planning the micro zonation based on the literature review. The result of this review, the plan and framework of micro zonation in Medan, North Sumatera will be important and needed for mapping the seismic hazards. The output of seismic micro-zonation map based on the geotechnical engineering survey with the Multichannel Analysis of Surface Waves (MASW), Spatial Auto Correlation (SPAC) and Horizontal to Vertical Ratio (HVSR) for dominant period.
Analysis of Raw Mill Machines Maintenance in Cement Industry
Authors: Sari R M , Syahputri K , Rizkya I , Nadhirah N 
Published: May 2020

Abstract
Cement processing plan is a state-owned enterprise engaged in the cement industry. The problem that this factory has is such as frequent damage to the engine. The machines used in cement production at the factory include raw mill machines, kiln machines, and cement mill machines. The more often a machine is damaged, the average time between failures of a machine is lower. So that it can cause the production process is hampered. In this study, the engine studied was the Raw Mill machine at plant. The raw mill machine functions as a main material grinder in the initial milling process such as limestone, silica stone, clay, and iron sand to become raw mix. To find out the frequency of damage to the machine or the time interval between damage to the tool (MTBF) and the length of time used to repair the tool (MTTR), the Total Productive Maintenance (TPM) method is used to perform maintenance by optimizing the effectiveness of the equipment and reducing / eliminating sudden damage (breakdown) by first identifying and then the cause of the problem is identified using fish bone analysis and Failure Mode and Effect Analysis (FMEA).
The Feasibility Study of Palm Oil Replanting Using Chipping Technique
Authors: Ritonga Candra E. , Wibowo Rulianda P. , Lubis Satia N. 
Published: May 2020

Abstract
This study aims to determine the feasibility of palm oil replanting using the chipping technique. The data were obtained through interview, observation and secondary data collection. The study is using NPV, Net B / C, IRR, Payback Period and sensitivity analysis for data analysis. The results indicate that the palm oil replanting using chipping technique is financially feasible to run. The results of the feasibility analysis show that the chipping technique generate financial benefits of Rp. 24,241,138 / ha per planting period with Net B/C ratio at 1.5. The payback period is 10 years and 7 months. This study also indicates that loan interest greater than 12.98% will not be feasible for palm oil plantation. The sensitivity analysis shows that the change in productivity has greater impact on profitability compared to the change in cost. Thus, palm oil plantation should focus on maintaining high level of crop productivity.
Design of Hydrogen Fuel Supply Chain Distribution Network from The Potency of Fresh Fruit Empty Bunches
Authors: Sari R M , Rizkya I , Nur T B , Syahputri K , Syahputra W A , Nouvan R 
Published: May 2020

Abstract
In Indonesia, the production of biomass is wasted because it is considered as “waste” that has no use anymore such as bagasse, rice grain skin, corn cob, and oil palm waste. Oil palm empty bunches have C and H chemical bonds, where most of the materials with chains C and H store heat energy so that hydrogen can be obtained as fuel. Process to convert a biomass into hydrogen is by gasification and pyrolysis. The purpose in this research is to design the distribution network from the potential fresh fruit empty bunches. The hydrogen produced is only 0.469% of the available potential and is similar to the existing of the used empty bunches potential. Selection of factory location is based on 4 criteria. From the criteria, obtained Labuhan Batu District as the best regencies in North Sumatra. Potential plantations can supply as much as 6,390,423,000 kgs with the ability of oil palm factory distribution of 1,469,797,290 kgs.
Prediction of Regional Revenue and Expenditure Budget using Autoregressive Integrated Moving Average (ARIMA)
Authors: Rahmat R F , Syaputra A H , Faza S , Arisandi D 
Published: May 2020

Abstract
The Regional Revenue and Expenditure Budget (APBD in Indonesia) is a financial plan stipulated by Regional Regulations. The APBD of the North Sumatra Provincial Government is the reflection of development direction in the Province of North Sumatra since it would not be possible to execute the regional development process without being supported by adequate cash. Therefore, this study aims to predict the APBD allocation in 5 types of accounts, namely Regional Original Revenues, Balancing Funds, Other Legal Regional Revenues, Indirect Expenditures, and Direct Expenditures using time series data from 2002 to 2019. The proposed method in this study is Autoregressive Integrated Moving Average, which is a forecasting method using the time series data in the form of current and past data of the APBD. The results showed that the forecasting of the 2020 APBD value for the Regional Original Revenue account is IDR 6,989,217 Million, for the Balance Fund account is worth IDR 8045.259 Million, for Other Legitimate Income is at IDR 317,546 Million, for Indirect Shopping is worth IDR 9,308,607 Million and for Direct Shopping at IDR 5,495,597 Million.
TNFα and Reactive Oxygen Signaling in Vascular Smooth Muscle Cells in Hypertension and Atherosclerosis
Authors: Lamb Fred S , Choi Hyehun , Miller Michael R , Stark Ryan J 
Published: May 2020

AbstractHypertension and atherosclerosis, the predecessors of stroke and myocardial infarction, are chronic vascular inflammatory reactions. Tumor necrosis factor alpha (TNFα), the “master” proinflammatory cytokine, contributes to both the initiation and maintenance of vascular inflammation. TNFα induces reactive oxygen species (ROS) production which drives the redox reactions that constitute “ROS signaling.” However, these ROS may also cause oxidative stress which contributes to vascular dysfunction. Mice lacking TNFα or its receptors are protected against both acute and chronic cardiovascular injury. Humans suffering from TNFα-driven inflammatory conditions such as rheumatoid arthritis and psoriasis are at increased cardiovascular risk. When treated with highly specific biologic agents that target TNFα signaling (Etanercept, etc.) they display marked reductions in that risk. The ability of TNFα to induce endothelial dysfunction, often the first step in a progression toward serious vasculopathy, is well recognized and has been reviewed elsewhere. However, TNFα also has profound effects on vascular smooth muscle cells (VSMCs) including a fundamental change from a contractile to a secretory phenotype. This “phenotypic switching” promotes proliferation and production of extracellular matrix proteins which are associated with medial hypertrophy. Additionally, it promotes lipid storage and enhanced motility, changes that support the contribution of VSMCs to neointima and atherosclerotic plaque formation. This review focuses on the role of TNFα in driving the inflammatory changes in VSMC biology that contribute to cardiovascular disease. Special attention is given to the mechanisms by which TNFα promotes ROS production at specific subcellular locations, and the contribution of these ROS to TNFα signaling.
Epidemiological data analysis of viral quasispecies in the next-generation sequencing era
Authors: Knyazev Sergey , Hughes Lauren , Skums Pavel , Zelikovsky Alexander 
Published: May 2020

Abstract
The unprecedented coverage offered by next-generation sequencing (NGS) technology has facilitated the assessment of the population complexity of intra-host RNA viral populations at an unprecedented level of detail. Consequently, analysis of NGS datasets could be used to extract and infer crucial epidemiological and biomedical information on the levels of both infected individuals and susceptible populations, thus enabling the development of more effective prevention strategies and antiviral therapeutics. Such information includes drug resistance, infection stage, transmission clusters and structures of transmission networks. However, NGS data require sophisticated analysis dealing with millions of error-prone short reads per patient. Prior to the NGS era, epidemiological and phylogenetic analyses were geared toward Sanger sequencing technology; now, they must be redesigned to handle the large-scale NGS datasets and properly model the evolution of heterogeneous rapidly mutating viral populations. Additionally, dedicated epidemiological surveillance systems require big data analytics to handle millions of reads obtained from thousands of patients for rapid outbreak investigation and management. We survey bioinformatics tools analyzing NGS data for (i) characterization of intra-host viral population complexity including single nucleotide variant and haplotype calling; (ii) downstream epidemiological analysis and inference of drug-resistant mutations, age of infection and linkage between patients; and (iii) data collection and analytics in surveillance systems for fast response and control of outbreaks.
The Noongar of south-western Australia: a case study of long-term biodiversity conservation in a matrix of old and young landscapes
Authors: Lullfitz Alison , Pettersen Carol , Reynolds Ron (Doc) , Eades Aden , Dean Averil , Knapp Lynette , Woods Eliza , Woods Treasy , Eades Eugene , Yorkshire-Selby Gail , Woods Steven , Dortch Joe , Guilfoyle David , Hopper Stephen D 
Published: May 2020

AbstractOccurring across all southern hemisphere continents except Antarctica, old, climatically buffered, infertile landscapes (OCBILs) are centres of biological richness, often in biodiversity hotspots. Among a matrix of young, often disturbed, fertile landscapes (YODFELs), OCBILs are centres of endemism and diversity in the exceptionally rich flora of the south-west Australian global biodiversity hotspot, home to Noongar peoples for ≥ 48 000 years. We analysed contemporary traditional Noongar knowledge of adjacent OCBILs (e.g. granite outcrops) and YODFELs (e.g. creekline fringes) both at a single site and in two larger areas to test whether patterns of disturbance dictated by Noongar custom align with OCBIL theory. We found that Noongar traditional knowledge reflects a regime of concentrated YODFEL rather than OCBIL disturbance—a pattern which aligns with maximal biodiversity preservation. SIMPER testing found traditional Noongar OCBIL and YODFEL activities are 64–75% dissimilar, whereas Pearson’s chi-square tests revealed camping, burning, travelling through country and hunting as primarily YODFEL rather than OCBIL activities. We found that Noongar activities usually avoid OCBIL disturbance. This combined with high floristic diversity following enduring First Peoples’ presence, suggests that traditional Noongar knowledge is valuable and necessary for south-west Australian biodiversity conservation. Similar cultural investigations in other OCBIL-dominated global biodiversity hotspots may prove profitable.
The role of team science in the future of male contraception†
Authors: Vahdat Heather L , Shane Kevin , Nickels Logan M 
Published: May 2020

Abstract
Efforts to develop a male contraceptive method beyond condoms and vasectomy have been on-going for nearly 70 years. During this time, there have been ebbs and modest flows of resources available to support product development, but not at a level sufficient to carry research efforts through to market. The small community of researchers that have continued to pursue the development of male contraceptives is comprised of dedicated scientists who have a great deal of knowledge and experience to offer. While collaboration has been an organic outcome of limited resources, competing research objectives and geographically diverse locations have made consistent and sustained progress challenging, particularly for those working in the earliest stages of developing nonhormonal, reversible male contraceptive methods. While the past decade has seen an increase in funding to the field, the levels are still modest when placed in the context of actual costs to bring products to market. In addition, there are challenges still to be identified given that there is no regulatory precedent for these products. These challenges present an excellent use case for the application of design-thinking or human centered design, as a means of generating novel solutions. By engaging those with deep technical expertise in the field of male contraception as well as thought leaders from other fields of practice, design-thinking offers an opportunity to identify potential strategies, including nontraditional approaches, capable of driving the product development process forward, in a faster and more efficient manner.