bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of Drivers and Barriers The Implementation of Sustainability Supply Chain Management (SSCM) in PT. ABC
Authors: Sembiring Nurhayati , Yurisditira Riky , Devany Jeanica 
Published: May 2020

Abstract
PT. ABC is one of government industry. Although the company has implemented SSCM, but in its implementation many problems still occurred. The problems that this company faced such as the unavailability of sufficient information to achieve sustainability goals to top management, budget allocation for the sustainability of the operation that not provide enough, the technology to adopt sustainability has not been efficient, etc. Some studied by another researcher had been done in this company but none studied about this topic. This study aims to analyze the factors that driving and inhibiting factors of supply chain implementation of sustainability management (SSCM) in PT. ABC. Based on TOPSIS method, it was found that the integrating factor sustained in a proactive plan with a value v = 0.8765, adequate budget v = 0.6204, support infrastructure and facilities for sustainable operations v = 0.5032, access to sophisticated technology for sustainable operations v = 0 , 3122, to enforce the government draft legislation effectively v = 0.3122, raising public awareness of the value of sustainable products v = 0.2780, and implementing sustainable waste management with the value v = 0.2423.
Improvement of endoclip design using 3D CAD approach
Authors: Siregar I , Izham M I C , Ariffin A C , Adenan M S , Saedon J B 
Published: May 2020

Abstract
Endoscopic clip (endoclip) is a metallic mechanical device used in gastrointestinal endoscopy practices with the intention of close mucosal surfaces deprived of the requirement for surgery and sew up. Nowadays, endoclip is accessible in the market predominantly in single firing mode, where the clip can only be used once in a period of process. Due to that, the clip is loaded to its applicator repeatedly during the operation which cause delay for the surgery that can lead to fatality. Therefore, this project aims to develop a multi-firing endoclip cartridge that can reduce the difficulty of reloading the endoclip system to its applicator by improving current design. Three design of multi-firing endoclip cartridges were produced by using different mechanism to apply the endoclip. The casing of the cartridge was designed in cylindrical shape with 40 mm diameter and 68 mm length with CATIA V5 software. These three designs formerly assessed by using decision matrix method for assortment of the best concept design. The result from the decision matrix table shows that design with revolve internal clip holder got the highest decision matrix selection amongst the three designs, advantaging in holding more clips and can reduce operation time compared to the other two designs
Proximate, ultimate and calorific value analyses of paper industry sludge at different moisture content
Authors: Yoh Sugimin , Sitepu T. , Ambarita H. 
Published: May 2020

Abstract
Paper industry has a big potency of energy that can be reused in its sludge. However, the water content of the sludge is still high and need to be dried. In this study, the characteristics of the sludge at different water content are explored. The sludge is collected from paper industry in Sumatera Utara province of Indonesia mainly at 70% water content. The experiments are carried out at lower water content that is from 10% to 60%. The proximate and ultimate analyses are carried out and the calorific values are discussed. The objective is to explore the potency of the sludge if it is employed as solid fuel. The results show that reducing water content of the sludge affects the characteristics of the sludge. The lower water content increases fixed carbon value, calorific value and volatile matter.
Analysis of the use of SEN0161 pH sensor for water in goldfish ponds
Authors: Nasution T H , Dika S , Sinulingga E P , Tanjung K , Harahap L A 
Published: May 2020

Abstract
Goldfish are considered economically important because they are popular with the community. Goldfish is an important type of freshwater aquaculture that is quite developed and can be cultivated in Indonesia. The pH value will affect the growth of fish. The acidity of water that is good for goldfish life is 7 to. The lowest limit that causes fish death is pH 4 and the highest at pH 11. Therefore, in this study, we will analyze the use of a SEN0161 pH sensor to measure the pH level of water in goldfish ponds. The pH measurement of fish pond water is compared with measurement data using a standard pH meter. Data collection and testing is done using two sensor nodes, where the first sensor node is connected to the Lattepanda which also functions as a base station. LattePanda communicates simultaneously with a data speed of 9600 bps with a second node sensor that uses Arduino as a microcontroller. In communicating, 2 nodes use the Xbee radio module. From the results of testing and implementation that have been done p, it can be concluded that the percent accuracy of the pH sensor reading SEN0161 at each node is ± 98.39% and ± 99.07%.
Optimization of Sei Wampu Dam Project Schedule Using Critical Path Method
Authors: Syahputri K , Mukhlidani P , Sari RM , Rizkya I 
Published: May 2020

Abstract
There are several companies engaged in construction, EPC (Engineering, Procurement, Construction), Infrastructure Investment, Property, and Real Estate experiencing project delays. One project is experiencing delays is Sei Wampu Dam Construction Project, Langkat Regency, North Sumatera Province starting from December 4, 2015 spending cost of IDR 309.093.870.437,59. Based on the data obtained, there was a delay in the project work by 13,575% in the cumulative 10th month results in material losses. Therefore, the project schedule optimization of Sei Wampu Dam is performed. The method used is Critical Path Method (CPM). Based on the calculation, the duration of the lead time is 1136 days with a total cost of IDR 362.200.345.57,-.
Investigation of Ti-6Al-4V surface integrity from milling process
Authors: Siregar I , Dzulkifli F N M , Saedon J B , Adenan M S 
Published: May 2020

Abstract
The applications of titanium alloys vary from aerospace industry, medical device and military, however having many challenges in the machining process due to difficult-to-machine characteristic of the material. This study focused on surface integrity of titanium alloy grade Ti-6Al-4V after milling process with different set of parameters. This research investigates the effect of surface integrity of titanium alloys (Ti-6Al-4V) after milling operation with difference cutting parameters such as feed rate, depth of cut and cutting speed. Characterization and measurements were taken on the surface morphology, residual stress, surface roughness and surface hardness. It was found out that from the experiment, the highest cutting speed at 8000 rpm produced lowest surface roughness value of 2.066 μm, while lowest cutting speed at 4500 rpm produced highest surface roughness of 2.55μm. The residual stress analysis shown that all the surfaces produced compressive stresses of more than 500 MPa. It is also found out no evidence of transformation at the morphology of the machined surface. Microhardness measurement at the depth 10 μm to 500 μm from the machined surface only shows slight increase of hardness, however, at the range from machined surface to 10 μm indicates low hardness due to softening effect from the machining process. This demonstrated that surface integrity of titanium alloys does effect by the machining parameters.
Effect of shape of test specimen on the shear strength of bamboo from eastern region of sumatera utara
Authors: Handana M A P , Surbakti B , Harisdani D D , Karolina R , Abdi D P 
Published: May 2020

Abstract
Wood is the most common forest-based product used in the construction industry, but due to reducing area of forest in the world, substitution materials for wood are needed. Bamboo has a huge prospect for the future as a wood substitute, and extensive and continuous research of bamboo, especially in mechanical properties of bamboo must be carried out to support bamboo as a material substitution for woods. This research focused on the shear strength of bamboo by comparing two types of standard tests used to determine the shear strength of bamboo. The standards are ISO 22517 and ASTM D 143. The compression test to determine the compressive strength is also conducted in this research. The bamboo species that used in this research are the species that grow in various district in the eastern region of Sumatera Utara. The result of the test shows that the highest shear strength for the specimens tested by ISO 22157 standard is Bambusa vulgaris with 6.32 MPa from Asahan and Tanjung Balai, and for the specimens tested by ASTM D 143 standard is Bambusa vulgaris with 12.31 MPa from Batubara. From the result it can be seen that all samples tested with ASTM D 143 standard have higher shear strength than those who tested with ISO 22157, with conversion ratio of 0,63. For compression test, the highest compressive strength is Gigantochloa robusta with 65.41 MPa from Asahan and Tanjung Balai.
Lean Manufacturing: Waste Analysis in Crude Palm Oil Process
Authors: Rizkya I , Syahputri K , Sari R M , Situmorang D S 
Published: May 2020

Abstract
Lean Manufacturing is an approach to system efficiency by reducing waste. Companies need to identify value added activities on products, non-value added activities (waste) must be eliminated to decrease the production lead time. Palm Oil Industry produces 2 main products namely Crude Palm Oil and Kernel Palm Oil. This paper describes the waste analysis occur in the palm oil production process. Waste management activities are identified along the production process flow. Then investigates the waste root causes occur the most. The result obtained is value added activities of 47%, non-value added activities of 13%, and necessary non value added activities of 40%.
Node-based versus Server-based Data Validations in Internet of Things
Authors: Mubarakah Naemah , Sihombing Poltak , Suherman Suherman , Soeharwinto  
Published: May 2020

Abstract
Internet of Things (IoT) collects and sends data over TCP/IP network for the intended application. Some applications designed sensors to be lost after battery exhausted. Therefore, battery lifetime is important. On the other hand, data quality can be disrupted by the harsh environment and interfering noises, so that the transmitted data may be invalid. Transmitting invalid data may exhaust battery sooner, while implementing validation algorithm may absorb more power. This paper proposed a simple peak detection method in IoT sensor to avoid transmitting invalid data. The experimental evaluation was set up and the method was compared to server-based support vector machine classifier. The results show that the proposed method is able to cancel 86% error data transmission with 1.25% power savings.
Digitization of Batak Manuscripts Using Methods Learning Vector Quantization (LVQ)
Authors: Muchtar M A , Jaya I , Siregar Nandar Cholid , Nababan E B , Effendi Syahril , Sitompul O S , Zarlis M , Andayani U , Nasution T H , Siregar I , Syahputra M F 
Published: May 2020

Abstract
Digitalization of the Batak manuscript itself is still done manually. [2][4] Dr. Uli Kozok has made a Batak script font that can run on Windows, Linux, and Apple OSX but there is no system that can digitize Batak manuscripts properly. There is no system that can digitize the Batak manuscript itself automatically. Therefore, we need a system that can digitize Batak manuscripts. This system was built by applying the LVQ Method. Batak manuscript digitization in .jpg format is used as an image input file for the recognition process. Then image pre-processing including grayscale, contrast, thresholding, and segmentation is done in order to facilitate the recognition of Batak documents and recognition as a result of document recognition. The application of LVQ method can digitize the Batak manuscript well and in accordance with what is desired. This is supported by an accuracy rate of 97.9%. Based on system testing, the absence of training data in the input document, the letters are unclear, the position of the letters is not appropriate and the background in the document is still noise which greatly affects the success rate of the system in recognizing Batak script documents.
Augmented Reality Technologies for Interior Design Planning using a Simultaneous Localization and Mapping Method
Authors: Syahputra M F , Aulia M R , Arisandy Dedi 
Published: May 2020

Abstract
Planning the placement of furniture in a room is an important planning process, with proper planning, the placement of furniture can be more efficient in the use of space, as well as from an aesthetic point of view. During this time the process can be done by using a sketch or other manual method. In this research, we use augmented reality technology to plan furniture placement in a room. We use the Markerless technique in the implementation of this AR system, and use the Simultaneous Localization and Mapping (SLAM) technique to determine the geospatial point where the furniture will be the desired layout. The results of this application ifound that good minimum distance in detecting SLAM on the ground is 60 cm and can only be seen up to a maximum position of 45 ° from the Z axis of the camera’s initial position when tracking. This application runs on the Android mobile platform Introduction.
A differentiable programming method for quantum control
Authors: Schäfer Frank , Kloc Michal , Bruder Christoph , Lörch Niels 
Published: May 2020

Abstract
Optimal control is highly desirable in many current quantum systems, especially to realize tasks in quantum information processing. We introduce a method based on differentiable programming to leverage explicit knowledge of the differential equations governing the dynamics of the system. In particular, a control agent is represented as a neural network that maps the state of the system at a given time to a control pulse. The parameters of this agent are optimized via gradient information obtained by direct differentiation through both the neural network and the differential equation of the system. This fully differentiable reinforcement learning approach ultimately yields time-dependent control parameters optimizing a desired figure of merit. We demonstrate the method’s viability and robustness to noise in eigenstate preparation tasks for three systems: a single qubit, a chain of qubits, and a quantum parametric oscillator.
Is biodiversity underestimated by classical herbarium-based taxonomy? A multi-disciplinary case study inSatyrium(Orchidaceae)
Authors: Botes Christo , van der Niet Timotheüs , Cowling Richard M , Johnson Steven D 
Published: May 2020

AbstractTaxa relegated to synonymy with other superficially similar taxa based on herbarium-based taxonomy may be distinct species that are only ‘rediscovered’ on the collection of new, multi-disciplinary evidence. Here we investigate the case of Satyrium jacottetiae that has been included in the concept of S. membranaceum (Orchidaceae). The two taxa share similarities in some conspicuous traits, such as the dry and membranous floral bracts, light pink labellum and laceration of the petals, but a quantitative morphometric analysis based on 23 floral traits showed that the two taxa differentiate in ordination space. We found that the taxa can be distinguished by features of the rostellum (short and broad in S. jacottetiae and elongate and notched in S. membranaceum), which are not readily apparent from examination of herbarium specimens. A phylogenetic analysis of nuclear ribosomal DNA sequences further revealed that accessions of S. jacottetiae belong to a clade that contains two other Satyrium spp. but not S. membranaceum. The two taxa have largely non-overlapping distributions on slightly different soil types, but they also maintain their integrity in the few zones of overlap despite evidence indicating that both are primarily pollinated by nocturnal moths. Coexistence in these cases of sympatry appears to be facilitated by a sequential difference in flowering times. We conclude that S. jacottetiae and S. membranaceum are morphologically, phylogenetically, geographically and ecologically distinct and should therefore be recognized as separate species. This study highlights the importance of multi-disciplinary taxonomic effort to avoid under-assessment of biodiversity.
Evaluation of the Risk of Laboratory Microbial Contamination during Routine Testing in Automated Clinical Chemistry and Microbiology Laboratories
Authors: Farnsworth Christopher W , Wallace Meghan A , Liu Albert , Gronowski Ann M , Burnham Carey-Ann D , Yarbrough Melanie L 
Published: May 2020

Abstract

Background
Every clinical specimen is potentially infectious, but data regarding risk for contamination of the laboratory environment during routine testing are scarce. We assessed contamination during routine sample analysis in automated clinical chemistry and microbiology laboratories.

Methods
A fluorescent marker was applied to specimen container exteriors to assess the impact of gross contamination. Nonpathogenic MS2 virus was added to remnant blood, urine, and ESwab matrices as a biomarker of cross-contamination. Samples were processed and analyzed using Roche Cobas 8100 and ISE, c502, e602, and c702 modules (blood) and BD Kiestra total laboratory automation (blood, urine, ESwabs) over 3 experiments. Fluorescence transfer to laboratory surfaces and personnel was visualized using ultraviolet light. Surfaces were swabbed and assessed for MS2 cross-contamination by RT-PCR. Adherence to standard precautions by laboratory staff was assessed by observation.

Results
Fluorescence was observed on 49 of 165 (30%) laboratory surfaces and personnel and 21 of 93 (23%) total laboratory automation instruments. Fluorescence transferred most frequently to gloves (31/40), computer accessories (9/18), and specimen loading racks (12/12). None of 123 areas swabbed were positive for MS2. Improper personal protective equipment use occurred at a rate of 0.36 and 0.15 events per staff per hour in the chemistry and microbiology laboratories, respectively. Hand-washing compliance was observed for 61 of 132 (46%) staff members evaluated.

Conclusions
Analysis of grossly contaminated specimens on automated chemistry and microbiology equipment elicits a low likelihood of instrument contamination. However, handling contaminated specimen containers can result in contamination of environmental laboratory surfaces, representing a source of risk that is heightened by low adherence to appropriate personal protective equipment.
Education Quality and Teaching Practices
Authors: Bassi Marina , Meghir Costas , Reynoso Ana 
Published: May 2020

Abstract
Improving school quality with limited resources is a key issue of policy. This article uses a randomised controlled trial (RCT) to estimate the effectiveness of guided instruction methods as implemented in under-performing schools in Chile. The intervention improved performance substantially, and equally for boys and girls. However, the effect is mainly accounted for by children from relatively higher-income backgrounds. Basing our study on the Classroom Assessment Scoring System (CLASS) instrument, we document that the quality of teacher–student interactions is positively correlated with the performance of low-income students; however, the intervention did not affect these interactions. Guided instruction improves outcomes, but the challenge to reach the most deprived children remains.
Mandating access: assessing the NIH’s public access policy
Authors: Staudt Joseph 
Published: May 2020

SUMMARY
In April 2008, the National Institutes of Health (NIH) implemented the Public Access Policy (PAP), which mandated that the full text of NIH-supported articles be made freely available on PubMed Central – the NIH’s repository of biomedical research. This paper uses 600,000 NIH articles and a matched comparison sample to examine how the PAP impacted researcher access to the biomedical literature and publishing patterns in biomedicine. Though some estimates allow for large citation increases after the PAP, the most credible estimates suggest that the PAP had a relatively modest effect on citations, which is consistent with most researchers having widespread access to the biomedical literature prior to the PAP, leaving little room to increase access. I also find that NIH articles are more likely to be published in traditional subscription-based journals (as opposed to ‘open access’ journals) after the PAP. This indicates that any discrimination the PAP induced, by subscription-based journals against NIH articles, was offset by other factors – possibly the decisions of editors and submission behaviour of authors.
Migration or ethnic minority status and risk of autism spectrum disorders and intellectual disability: systematic review
Authors: Morinaga Maki , Rai Dheeraj , Hollander Anna-Clara , Petros Nuhamin , Dalman Christina , Magnusson Cecilia 
Published: May 2020

Abstract

Background
There is an emerging evidence that the migration and the ethnic minority status are associated with the risks of autism spectrum disorder (ASD) and intellectual disability (ID). This systematic review aimed to investigate whether associations are specific to ASD or ID; whether and which migration-related or ethnically determined factors are associated with the risk of ASD and ID; and what mechanisms may explain these risks.

Methods
A systematic literature search was conducted using Embase, Medline and PsycINFO for studies reporting on the risks of ASD and/or ID among migrants, descendants of migrants and/or ethnic minorities. Risks of any ASD, ASD + ID, ASD – ID and any ID were reviewed in relation to migration and ethnic minority status, with consideration to the study quality. In addition, possible underlying mechanisms suggested in the included studies were summarized.

Results
Thirty-five studies were included. The summarized evidence indicated an increased risk of ASD + ID and a decreased risk of ASD – ID in migrants, descendants of migrants and ethnic minorities. These associations appeared more pronounced among children of migrant mothers, with origin in low-income countries, and among descendants of migrants. Data on ID were scarce. Suggested mechanisms explaining the increased risks of ASD + ID included environmental factors acting in utero and genetic factors (including consanguinity), while ascertainment bias was proposed to account for the lowered risks of diagnosed ASD – ID.

Conclusion
Migration-related factors acting in utero and/or associated with origin in low-income countries may be important in the ASD + ID aetiology, although further confirmative studies are needed.