bluuebunny/crossref_metadata_2025_split huggingface dataset:
Characteristics and catalytic activity of zeolite-a synthesized from rice husk silica and aluminium metal by sol-gel method
Authors: Pandiangan K D , Simanjuntak W , Pratiwi E , Rilyanti M 
Published: October 2019

Abstract
In this research, sol-gel process was applied to synthesize zeolite-A from rice husk silica and aluminum metal. For preparation of the zeolite, the specified amount of rice husk silica and aluminum metal was separately dissolved in NaOH solution, and both solutions were transfered in to a laboratory mixture for complete mixing and production of gel. The gel was converted into solid zeolite precursor by oven drying of the gel for 24 hours. The precursor was transformed into zeolite by subjecting to different calcination temperatures, and then characterized using different techniques. The zeolites were also tested as catalyst for transesterification of Ricinius communis oil. Development of structure of the zeolite was confirmed using FTIR and XRD techniques analyses, while SEM analysis revealed the characteristic of the samples as porous and multiphasic materials. The zeolites were found to exhibit good catalytic activity as revealed by the results of transesterification of Ricinius communis oil. Appreciable catalytic activities were also demonstrated by the reaction yields achieved which are in the range of 68 to 82%.
The Locating-Chromatic Number for Certain Operation of Generalized Petersen Graphs sP(4,2)
Authors: Irawan A , Asmiati  , Suharsono  , Muludi K 
Published: October 2019

Abstract
The locating-chromatic number of a graph combined two graph concept, coloring vertices and partition dimension of a graph. The locating-chromatic number, denoted by χL
(G), is the smallest k such that G has a locating k-coloring. In this paper, we discuss the locating-chromatic number for certain operation of generalized Petersen graphs sP(4,2).
Comparison of Milne-Simpson Method and Hamming Method in Logistic Equation Settlement on Pert Prediksi the People of Bandar Lampung City
Authors: Azis D , Napitupulu M 
Published: October 2019

Abstract
Milne-Simpson method and Hamming method are a numerical method that can be applied in the calculation of population prediction in the future as a reference government in building an area. Beginning with the calculation of growth rates with logistic equations then processed into the fourth-order Runge-Kutta method. The recalculation process continues to search for the smallest error between the Milne-Simpson method and the Hamming method. Error calculation is done with population growth rate 5.2% with step size h = 1 and capacity of Bandar Lampung city 1.500.000 soul. Numerical solutions show population growth annually and Milne-Simpson method is the best method seen from the smaller error than the Hamming method error.
Dijkstra’s Algorithm to Find Shortest Path of Tourist Destination in Bali
Authors: Fitriansyah A , Parwati N W , Wardhani D R , Kustian N 
Published: October 2019

Abstract
Bali is one of many small island in Indonesia and referred as “The Island of Gods”. Bali has varieties of tourist destination e.g. art villages, ecotourism, historical building, spiritual tourism and temples. Dijkstra’s algorithm is an algorithm that used to be solution in finding shortest path problem. It can be use to find the shortest route between one tourist destination and all other tourist destinations. Hence, we use dijkstra’s algorithm to find shortest path of tourist destination in Bali. There are top ten tourist destinations that has been used in this paper Tanah Lot, Uluwatu, Ulun Danu Beratan, Kebun Raya Eka Karya, Penelokan Batur, Tirta Empul, Taman Ayun, Bali Safari and Marine Park, Goa Gajah and Bali Zoo Park.
IT Governance Audit at Lampung University Using COBIT 5 Framework Focus on EDM Domain
Authors: Tristiyanto  , Octaria C 
Published: October 2019

Abstract
The competitiveness of an organization depends on IT governance because it enables organizations to optimize the benefits of implementing IT. The process of IT governance in the university’s answer to the needs of the organization which will guarantee the certainty of value creation of information technology as well as an assurance of the return of information technology investments that have been invested. Currently, IT governance and implementation at the University of Lampung has been run fairly well, but there are some steep obstacles in its business processes. COBIT 5 is a standard for IT governance processes that can help an organization to manage, develop, and retain its assets. In this study, an information technology governance audit was conducted based on the focal framework of COBIT 5 EDM domains with case studies at the University of Lampung. Data collection methods used are data analysis, interviews, and questionnaires. From the audit process, it was found that Lampung University’s ability to manage information technology at EDM generally focuses on level 4, but the achievement in each process has not been fulfilled yet and has not achieved the expected results by University of Lampung.
A New Approach of Steganography Using Center Sequential Technique
Authors: Darwis D , Junaidi A , Wamiliana  
Published: October 2019

Abstract
The quality of steganographic images can be determined from several aspects. One of the testing techniques on steganography is cropping which is part of robustness testing. Under cropping process, it is possible that the secret message cannot be extracted from the stego-image. This happen because the pixels values on the stego-image embedded message changed and the message content on the stego-image will be lost. In this research we propose a new approach for solving that problem by using the algorithm based on Sequential Technique where the input process starts from the center of the cover. The secret information in the form of image and the cover image is also an image. By using this method, the secret image is safe although the cropping is done from left, right, above or bottom of the stego image.
Learning Activities to Promote the Concept of Engineering Design Process for Grade 10 Students’ Ideas about Force and Motion through Predict-Observe-Explain (POE)
Authors: Bunprom Somsak , Tupsai Jiraporn , Yuenyong Chokchai 
Published: October 2019

Abstract
The purpose of this study was to learning activities for promoted the concept of engineering design Grade 10 students’ ideas of engineering design process on the problem based about force and motion. The force and motion unit provided the problem based activities through predict-observe-explain (POE). Participants included 60 Grade 10 students who were studying in Khon Kaen University Demonstration Secondary School (suksasart). Methodology regarded interpretive paradigm. The Hynes et.al. (2011) framework of engineering design process (EPD) was applied as reference of students’ existing ideas of engineering design process. The Hynes et.al. (2011) EPD consists of 9 steps including (1) identify need or problem, 2) research need or problem, 3) develop possible solutions, 4) select the best possible solution, 5) construct a prototype, 6) test and evaluate solution, 7) communicate the solution, 8) redesign, and 9) completion decision. The force and motion POE problem based was provided in order to allow students to design the possible solutions of inclined plane problem based. The 13 students’ tasks of solutions were interpreted to clarify students’ existing ideas of EPD. The findings revealed that all group could be interpreted that they held 9 steps of Hynes et.al. (2011) EPD to design their solutions. The paper will discuss the details of students’ existing ideas of engineering design process. The paper may have implication for STEM education teaching and learning.
Local Wisdom Related to STEM Education
Authors: Saeng-Xuto Virapong 
Published: October 2019

Abstract
This study aimed to clarify plausibility of developing STEM education learning activities based on Thai local wisdom. Research method regarded document analysis. The author previous research about toys and local wisdom were analysed for STEM education. The local toys in northern part of Thailand were selected to represent how they could be used in classroom for STEM education. Two kinds of toys were explained. These included (1) Bunbeu and (2) E-plor. The paper clarified the components of toys, how to play the toys, and STEM knowledge behind playing the toys. This study may have implications for STEM education learning activities.
Localization study of CHD7 protein expressed in HeLa and HEK293 cells
Authors: Brajadenta G S , Kitzis A , Thoreau V 
Published: October 2019

Abstract
CHARGE syndrome is a rare genetic disease characterized by numerous congenital abnormalities caused by de novo alterations of the CHD7 gene. It encodes a chromo domain protein, involved in the ATP-dependent remodelling of chromatin. It has been described that CHD7 protein plays a role as a positive regulator of the nucleolar expression of the 45S ribosomal RNA precursor. The aim of this research was to study where the CHD7 protein is localized. Knowledge of the subcellular localization of the CHD7 protein is essential for understanding its physiological function. This study was conducted by transfection of two plasmids encoding CHD7-HA or FLAG-CHD7 into HeLa (human cervix carcinoma) and HEK293 (human embryonic kidney) cells. Protein expression and localization of the CHD7 protein was demonstrated by western blot and immunofluorescence. CHD7 protein was expressed in both cell models, and localization of the protein was found in the nucleoplasm, but not in the nucleolus.
The effect of micro-climate to quality and existence of Gedong Gincu Mango
Authors: Jaenudin A , Suradinata T , Maryuliyanna M 
Published: October 2019

Abstract
Indonesia as tropical country has various of agro-climate that affected to spread of plants, of course for mango plant. Gedong Gincu mango as a competitive commodities in west java, spread. In three district of west java, Cirebon, Majalengka and Indramayu district. The aims of this research was to analyze the effect of physical environmental components to Gedong Gincu mango characteristics in three districts of west Java, Indonesia. The research was performed in Indramayu, Cirebon, and Majalengka in January-June 2017. The methods of this research was descriptive qualitative. The results showed that the difference of micro-climate, including (rainfall, temperature, and humidity), effected Gedong Gincu mango characteristics, especially size, shape, color and texture of fruit flesh. Gedong Gincu mango from Indramayu has spherical shape, a small size, a strong red color, a hard and thin flesh, a fragrant flavor, and very sweet taste. Gedong Gincu mango from Cirebon has oval shape, a medium size, red color, medium and rather thick flesh, a fragrant flavour and sweet taste. Gedong Gincu mango from Majalengka has a sprawl, large size, yellowish red color, fine meat and thick flesh, a medium flavour and less sweet taste.
Communication in agricultural extension services toward farmer empowerment
Authors: Faqih A , Aisyah S 
Published: October 2019

Abstract
This research was conducted to find out the influence of agents on the results of empowerment of farmers, the effect of recipients on the results of the farmer empowerment, the effect of agricultural extension on the results of the farmer empowerment, and the influence of agents, recipients, and agricultural extension on the results of farmer empowerment. This research was carried out in May to July 2017. Quantitative descriptive method was applied by using primary and secondary data. Primary data obtained from interviews with 24 respondents who applied integrated crop management technology (PTT) on paddy fields. Technique of interview was guided with questionnaires while secondary data was taken from some literature work and relevant agencies. The results showed that: there is positive and significant influence between the agents and farmer empowerment, there is positive and significant influence between the recipients on the farmer empowerment, there is positive and significant influence between agricultural extension on the results of the farmer empowerment, and there is positive and significant influence between the agents, recipients, and agricultural extension on the results of farmer empowerment.
Aerial pathogenic micro fungi in medical classes on medical faculty
Authors: Amanah A , Kusmawan D , Sutisna A 
Published: October 2019

Abstract
Microbiological air pollution consists of micro fungi and bacteria. Micro fungi are indoor air pollutant because its spores widely spread, floats in the air, surface, dust, and water, and can be pathogenic. Isolation and identification of aerial pathogenic micro fungi in study rooms in Medical Faculty attempted to find whether there was difference of micro fungi number in every study room. The research design is experimental descriptive research, using 8 samples with 3 repetitions. Data analyzed using Kruskal-Walls test. The research result showed the successfully identified 10 aerial pathogenic micro fungi which were: Aspergillus Niger, Aspergillus flavus, Aspergillus glaucus, Rhizopus sp., Mucor sp., Penicillium sp., Trichoderma sp., Syncephalastrum sp., Scopulariopsis sp., and Cladophialophorabantiana. The research also showed that there was difference of aerial pathogenic micro fungi number in every study rooms ranging between 16,490-73,026 CFU m3, but statistically there wasn’t significant difference. (P Value = 0,459). The result was still considered as normal based on the regulation of ministry of health Republic of Indonesia.
Analysis of added value in dry sea fish agroindustry in Gebang Sub District, Cirebon Regency
Authors: Wachdijono W , Julhan R 
Published: October 2019

Abstract
It has been recognized by agricultural economists that the biggest added value to the agribusiness system lies in its agro-industrial sub-system. This is because in the sub-system, agricultural products experience additional benefits so that the selling price becomes higher. High selling prices will increase profits for the perpetrators and on a wider scale will be a source of new economic growth. This study aims to analyze the added value of dry sea fish agroindustry in Gebang Sub District, Cirebon Regency. The research location was determined intentionally and carried out during May - June 2018. The research method was quantitative and survey data collection techniques. The population is 18 processors of wet sea fish into dry sea fish and census sampling techniques. Data analysis uses Hayami Model calculation method. The results showed that the added value of dry sea fish agroindustry was Rp 681, - / kg (8 %). Based on this analysis it can be concluded that the value added of dry sea fish is still relatively small so the opportunity to increase the added value is still open. For this reason, it is suggested to the Cirebon Regency Government to make policies to increase the added value of dry sea fish through the application of appropriate technology.
Learning Management System (LMS) schoology: Why it’s important and what it looks like
Authors: Ferdianto F , Dwiniasih  
Published: October 2019

Abstract
E-learning becomes one of the concepts deriving learning management system (LMS) which is designed to identify the gaps in teaching learning process, analyzing and reporting the data received automatically. One of the upgrading platforms of this learning management system recently is Schoology. It serves collaborative blended learning units which is form used in revolution 4.0 era. In investigating the reason of why Schoology is important and try to dig more information of its look, interview and documentation are applied in this research to be described clearly. Two teachers from one of the private universities in Cirebon are willing to participate in this research. By its interactive features that Schoology has, it changes teacher’s perspective to be a must using Schoology since it allows teachers to collaborate not only with their students, but also with other teachers, coaches, and parents. Four aspects of features involve content delivery, test and quizzes, discussion, and video viewing/link sources which allowed teachers sharing material discussed with students, searching new article with other teachers, and grading students test result, quizzes and attendance offered by Schoology as the reason of both teachers that Schoology should be one of learning management system conducted.
Informal caregiving for dementia patients: the contribution of patient characteristics and behaviours to caregiver burden
Authors: Allen Andrew P , Buckley Maria M , Cryan John F , Ní Chorcoráin Aoife , Dinan Timothy G , Kearney Patricia M , O’Caoimh Rónán , Calnan Mareeta , Clarke Gerard , Molloy D William 
Published: October 2019

AbstractObjectivesThe burden often associated with informal caregiving for patients with dementia is associated with negative effects on health, both physiologically and in terms of caregiver cognition. There is wide variation in the level of burden experienced by dementia caregivers. To better understand caregiver burden, it is thus important to understand the factors associated with level of burden.MethodsIn the current study, we collected carer burden and putative associated factors at baseline, 6 and 12 months. Hierarchical regression was used to assess the impact of these factors on caregiver burden. We assessed self-reported carer burden, patient behavioural and safety issues, and level of difficulty associated with providing assistance with activities of daily living (ADL). Patients’ age was also recorded, and trained nurses assessed patient cognitive performance using the quick mild cognitive impairment screen.ResultsAt baseline, patients’ age, cognition and ADLs were associated with burden, and safety and challenging behaviour were both significantly associated with burden independent of the other factors. Change in burden was associated with change in carer-reported safety at 6-month follow-up, and with change in safety and change in carer-reported challenging behaviours at 12-month follow-up.ConclusionsSafety issues and challenging behaviours are associated with carer burden, even after accounting for cognitive and functional impairment in the person with dementia. As dementia progresses, monitoring these factors may help to inform stress-management strategies for caregivers.
Vancomycin volume of distribution estimation in adults with class III obesity
Authors: Dunn Ryan D , Crass Ryan L , Hong Joseph , Pai Manjunath P , Krop Lynne C 
Published: October 2019

Abstract

Purpose
To compare methods of estimating vancomycin volume of distribution (V) in adults with class III obesity.

Methods
A retrospective, multicenter pharmacokinetic analysis of adults treated with vancomycin and monitored through measurement of peak and trough concentrations was performed. Individual pharmacokinetic parameter estimates were obtained via maximum a posteriori Bayesian analysis. The relationship between V and body weight was assessed using linear regression. Mean bias and root-mean-square error (RMSE) were calculated to assess the precision of multiple methods of estimating V.

Results
Of 241 patients included in the study sample, 159 (66.0%) had a BMI of 40.0–49.9 kg/m2, and 82 (34.0%) had a BMI of ≥50.0 kg/m2. The median (5th, 95th percentile) weight of patients was 136 (103, 204) kg, and baseline characteristics were similar between BMI groups. The mean ± S.D. V was lower in patients with a BMI of 40.0–49.9 kg/m2 than in those with a BMI of ≥50.0 kg/m2 (72.4 ± 19.6 L versus 79.3 ± 20.6 L, p = 0.009); however, body size poorly predicted V in regression analyses (R2 < 0.20). A fixed estimate of V (75 L) or use of 0.52 L/kg by total body weight yielded similar bias and error in this population.

Conclusion
Results of the largest analysis of vancomycin V in class III obesity to date indicated that use of a fixed V value (75 L) and use of a TBW-based estimate (0.52 L/kg) for estimation of vancomycin V in patients with a BMI of ≥40.0 kg/m2 have similar bias. Two postdistribution vancomycin concentrations are needed to accurately determine patient-specific pharmacokinetic parameters, estimate AUC, and improve the precision of vancomycin dosing in this patient population.
Blindness After Facial Filler Injections: The Role of Extravascular Hyaluronidase on Intravascular Hyaluronic Acid Embolism in the Rabbit Experimental Model
Authors: Zhang Lei , Feng Xiao , Shi Hangyan , Wu Woffles T L , Wu Sufan 
Published: October 2019

Abstract

Background
Blindness caused by ophthalmic artery embolism is the most catastrophic complication of facial hyaluronic acid (HA) injections. Extravascular (retrobulbar) injection of hyaluronidase has been suggested as a salvage in this calamitous situation. However, the effectiveness of this treatment still lacks consensus.

Objectives
The aim of this study was to investigate the role of extravascular hyaluronidase in dissolving intravascular HA occlusion.

Methods
Two different animal experiments were performed: (1) isolated rabbit abdominal aorta segments filled with HA were treated with extravascular immersion of highly concentrated hyaluronidase for 90 minutes, followed by gross observation, microscopic examination, particle size analysis, and immunohistochemical staining; and (2) live rabbit auricular arteries were first occluded with HA and then immediately treated with extravascular injection of hyaluronidase. The ears were then evaluated by gross observation, microscopic examination, and perfusion studies after 60 minutes and again after 90 minutes.

Results
The HA within the aorta segments showed no gross or microscopic changes after treatment with extravascular hyaluronidase. Hyaluronidase could only be detected in adventitia of the aortae, instead of in vascular smooth muscle, tunica intima, or vascular lumen. The occluded auricular arteries showed no reperfusion after extravascular injection of hyaluronidase.

Conclusions
In this rabbit model, extravascular hyaluronidase was unable to penetrate into the arterial lumen of the isolated abdominal aorta nor the live auricular artery of the rabbit to dissolve intravascular HA within a 90-minute time limit, thus casting doubt on whether extravascular (retrobulbar) hyaluronidase injection has a role in treating ophthalmic artery embolism caused by HA injections.
Intralesional Electrocoagulation With Insulated Microneedle for the Treatment of Periorbital Syringomas: A Retrospective Analysis
Authors: Ahn Ga Ram , Jeong Guk Jin , Kim Jae Min , Hong Ji Yeon , Li Kapsok , Lee Chang Kyun , Kim Beom Joon 
Published: October 2019

Abstract

Background
Conventional treatment options for periorbital syringomas are often unsatisfactory because of inevitable surface damage from the procedure and frequent recurrence rate of the tumors.

Objectives
The authors sought to ascertain the efficacy and safety of intralesional electrosurgery utilizing a monopolar radiofrequency device with a single insulated microneedle for the treatment of periorbital syringomas.

Methods
A retrospective analysis was performed employing data from medical records, routine questionnaires, and clinical photographs of 55 patients with periorbital syringoma who underwent intralesional electrosurgery.

Results
Approximately one-half of the patients (50.9%) experienced marked resolution after 1 treatment. The lesion clearance rate increased and lesion severity decreased each time the treatment was repeated. No persistent therapy-related adverse event was found except transient erythema or crusting.

Conclusions
Intralesional electrosurgery with insulated microneedle is an effective and safe treatment option for periorbital syringomas.

Level of Evidence: 4