bluuebunny/crossref_metadata_2025_split huggingface dataset:
Total Endoscopic Transcanal Cartilage Myringoplasty: A Prospective Study
Authors: Shakya Dipesh , KC Arun , Nepal Ajit , Tamang Nirmala 
Published: May 2019

Introduction Middle ear surgeries, including myringoplasty, have increasingly utilized endoscopes as an adjunct to or as a replacement for the operative microscope.
Objectives The objective of the present study was to evaluate the graft uptake rate and to evaluate the hearing results.
Methods This is a prospective study. We have analyzed 139 patients who underwent surgery for chronic otitis media (COM) of the mucosal type. All of the surgeries were performed exclusively under total endoscopic transcanal approach using tragal cartilage as graft, underlay technique. We have evaluated the postoperative graft uptake and performed a hearing evaluation at 6 weeks, at 12 weeks, and at 6 months.
Results During the study period, 139 patients were included, out of which 13 were lost to follow-up; therefore, only 126 patients were assessed. All of the cases were performed under total endoscopic approach. As for the surgical outcome at the postoperative otoscopy, 3 cases had initial uptake at 3 months and failed later; therefore, complete closure of the perforation was observed in 97.6% (n = 123) of the patients 6 months after the intervention.Four patients presented with preoperative anacusis; therefore, only 122 patients were included for hearing evaluation. The preoperative air conduction threshold (ACT) and airbone gap (ABG) were 43.34 ± 11.53 and 24.73 ± 7.89, respectively.Postoperatively, the ACT and ABG closure were 28.73 ± 15.75 and 11.91 ± 8.41, respectively. This difference was statistically significant (p < 0.001).
Conclusion The endoscopic approach for myringoplasty offers excellent visualization; avoids postaural approach, enables a faster recovery, requires less hospital stay, with excellent graft closure rate and improved functional outcomes.
The base pair-scale diffusion of nucleosomes modulates binding of transcription factors
Authors: Rudnizky Sergei , Khamis Hadeel , Malik Omri , Melamed Philippa , Kaplan Ariel 
Published: May 2019

Significance
As nucleosomes prevent binding of transcription factors (TFs) to DNA, their position needs to be actively modulated. Nucleosomes can also reposition spontaneously, but this process and its effect on TF binding have not been extensively studied. Here, we developed a method based on single-molecule optical tweezers to simultaneously measure nucleosome diffusion and TF binding to the same DNA molecule. We show that nucleosomes undergo confined diffusion on the DNA, and that the confinement is relieved upon incorporation of the histone variant H2A.Z leading to an increase in TF binding, which then further biases nucleosome diffusion. Our results shed light on a previously uncharacterized mechanism of transcriptional regulation.
Facial expressions and emotions in domestic animals.
Authors: Lezama-García K. , Orihuela A. , Olmos-Hernández A. , Reyes-Long S. , Mota-Rojas D. 
Published: May 2019

Abstract
In many animal species, facial expressions are key elements for recognizing emotions and numerous types of social interaction. Emotions are complex reactions that allow individuals to cope with full events that have either positive or negative meaning and involve certain neurophysiological responses proper to each emotion and species. Regulation of emotional states requires integrating a whole series of responses - peripheral, autonomous, endocrine and muscular - that entail activating various sub-cortical structures, including the amygdale, hypothalamus and brainstem. In recent decades, interest in the emotions expressed by animals has grown, and researchers have come to understand that some problems of animal welfare can be detected by examining and comprehending the emotional experiences that animals may suffer, and identifying how they demonstrate their reactions through facial expressions and corporal postures. The objective of this review is to examine recent literature on aspects related to the function of the emotions and facial expressions in certain domestic species (cats, dogs, rats, sheep, horses and pigs) and propose that understanding facial expressions can be useful as a complement to existing tools in assessing welfare and working with, or doing research on, these species.
Finding all non-dominated points for a bi-objective generalized assignment problem
Authors: Al-Hasani Ali , Al-Rabeeah Masar , Kumar Santosh , Eberhard Andrew 
Published: May 2019

Abstract
In this paper, we consider a bi-objective generalized assignment problem (BOGAP) and find all non-dominated points using two methods; Two Phases Method (TPM) and the Balanced Box Method (BBM). The computational results are shown by testing a number of instances, which indicates that the TPM performs better compared to the BBM.
Quarternion gaussian integral and its application to a geometry of quarternion gaussian distributions
Authors: Suzuki Tatsuo 
Published: May 2019

AbstractWe give an explicit formula of a quarternion Gaussian integral in terms of a quaternionic determinant. Then, we obtain a simple form of a probability density function of multivariate quarternion Gaussian distributions. Moreover, as an application to a geometry, we obtain the Fisher metric of quarternion Gaussian distributions by using the potential function of them.
Total H-irregularity strength of ladder graphs
Authors: Hinding Nurdin , Vega Elit , Basir Hasmawati 
Published: May 2019

Abstract
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Sequences and its properties on type-metric space
Authors: Sunarsini  , Yunus Mahmud , Dimaz Wisnu A , Sadjidon  
Published: May 2019

Abstract
In this paper, we generalized concept of metric space, namely the type-metric space. The difference between type-metric with metric is triangular inequalities. We will investigate some properties of the convergent sequence, the Cauchy sequence, the contractive sequence on the type-metric space. Then, we investigate the relationship between the metric space and the type-metric space with an the example. At the end of this paper, we construct a type-metric function on the cone metric space.
An epidemic cholera model with control treatment and intervention
Authors: Subchan  , Fitria Irma , Syafi’i Ahmad M 
Published: May 2019

Abstract
The mathematical modelling and dynamics optimization of cholera disease spread are discussed. The proposed SEIQR (Susceptible-Educated-Infected-Quarantined-Recovered) type model takes into account the bacterial concentration of the cholera spread dynamics. Three controls are considered to minimize the spread of cholera which are the treatment of quarantined populations and intervention efforts as a strategy in preventing the spread of disease through improved sanitation and education. Furthermore, the dynamics optimization problem is solved using the Pontryagin Minimum Principle method. The purpose is to decrease the populations of infected human populations and bacterial populations while minimizing the costs incurred for sanitation, educational and quarantine improvement. Numerical results are presented to show that the three controls can effectifely minimize the spread of cholera.
A numerical method for valuation of european option with regime-switching volatility and interest rate
Authors: Putri Endah RM , Imron Chairul , Lista Tauryawati Mey 
Published: May 2019

Abstract
This paper develops a numerical method for pricing European options with regime-switching volatility and interest rate governed by the Black-Scholes equation. The method is based on a finite volume method with a spatial discretization and implicit time stepping technique. We show that the system matrix of the discretized system is an M-matrix and present an algorithm for solving the problem. Numerical experiment are implemented for some European option problems to illustrate the usefulness of this method.
Field of a permanent magnet: remotely controlled measurement
Authors: Hoyer Christoph , Thoms Lars-Jochen , Girwidz Raimund 
Published: May 2019

Abstract
In textbooks, magnetic fields are usually visualized by two-dimensional field lines. There, the density of field lines is often misleadingly stated to be proportional to the strength of the magnetic field. This is not entirely correct. To help students better understand the different characteristics of magnetic fields, it is important that they gain experience with magnetic fields by performing real or virtual experiments themselves.
To improve the students’ knowledge of the characteristics of magnetic fields, a remote laboratory was developed which allows exact positioning of a two-dimensional hall sensor around a Neodymium bar magnet. This offers the opportunity to make much more sensitive measurements than it is possible in schools. Technical issues and an example analysis of the measured data are discussed.
From harmonic oscillation to chaotic motion of a compass
Authors: Csernovszky Zoltán 
Published: May 2019

AbstractWith secondary school students at the age of 17-20 years old, we described compass motion in uniform-immobile, uniform rotating and their superposed magnetic fields. As the students have already known the kinematics, dynamics and energy analysis of a simple pendulum in harmonic case, we tried to find analogies between pendulum and compass. Using Dynamic Solver freeware software and two representation types, phase-plane and stroboscopic projection, we simulated and analysed compass motions in more and more complex cases. Finally, we searched chaotic attractors, the sign of chaotic motion, on stroboscopic projections. A new type of representation, a video where every picture is a stroboscopic projection, helped to understand our results. This study was funded by the Content Pedagogy Research Program of the Hungarian Academy of Sciences.
Physics – IT based international student exchange program
Authors: Gergely Pesthy Sándor , Hömöstrei Mihály 
Published: May 2019

Abstract
International student exchange programs are an integral part of the life of high school students across Europe. The popularity of these programs is understandable because the participating students can not only learn foreign languages, but they can also learn new cultures and make friends. The motivating force of this popularity was used in our program to bring even those students closer to science and engineering, who perhaps would not ever get closer to these areas. In our paper, we present a “project week” alike event, in which we used a simple, manageable, affordable and programmable electronic kit – Arduino – for the development of relevant competencies of our students and for the knowledge of physics and information technology.
Educational experiments with motion simulation programs: can gamification be effective in teaching mechanics?
Authors: Radnai T , Tóthné Juhász T , Juhász A , Jenei P 
Published: May 2019

Abstract
Students in secondary schools are all members of the so-called Z-generation. They grew up using their smartphones, tablets and the Internet. It is an obvious consequence that science teaching should also exploit this spontaneous interest in IT. A possible way to utilize this trend in teaching physics is to use motion simulation programs. These software are designed to simulate real-life physics experiments using realistic two-dimensional visualization, while motion-related data can be read from graphs that are displayed during the motion. The use of such programs can strengthen the previously acquainted knowledge in the topic of kinematics and dynamics, support problem solving skills, or just raise interest in the subject. The most well-known physics simulation software are Algodoo and Physion. A Hungarian company (Intellisense) has also been developing a similar software, FIZIKA with the contribution of our research group that can be used for free in schools and can be easily fit in physics education. In recent years, there has been an increasing amount of literature about the use of physics simulation programs, however no quantitative study has been conducted on how these programs effect student performance. Our research group completed an educational experiment on teaching kinematics involving about 500 students in the autumn of 2016. Half of the students used the simulation software in physics classes and at home, while the other half was the control group. After a few months, their development in the subject was measured with a test and the results showed significant difference between the two groups.
Social-ecological network analysis for sustainability sciences: a systematic review and innovative research agenda for the future
Authors: Sayles J S , Mancilla Garcia M , Hamilton M , Alexander S M , Baggio J A , Fischer A P , Ingold K , Meredith G R , Pittman J 
Published: May 2019

Abstract
Social-ecological network (SEN) concepts and tools are increasingly used in human-environment and sustainability sciences. We take stock of this budding research area to further show the strength of SEN analysis for complex human-environment settings, identify future synergies between SEN and wider human-environment research, and provide guidance about when to use different kinds of SEN approaches and models. We characterize SEN research along a spectrum specifying the degree of explicit network representation of system components and dynamics. We then systematically review one end of this spectrum, what we term ‘fully articulated SEN’ studies, which specifically model unique social and ecological units and relationships. Results show a larger number of papers focus on methodological advancement and applied ends. While there has been some development and testing of theories, this remains an area for future work and would help develop SENs as a unique field of research, not just a method. Authors have studied diverse systems, while mainly focusing on the problem of social-ecological fit alongside a scattering of other topics. There is strong potential, however, to engage other issues central to human-environment studies. Analyzing the simultaneous effects of multiple social, environmental, and coupled processes, change over time, and linking network structures to outcomes are also areas for future advancement. This review provides a comprehensive assessment of (fully articulated) SEN research, a necessary step that can help scholars develop comparable cases and fill research gaps.
The Characteristic of spectral reflectance of LAPAN-IPB (LAPAN-A3) Satellite and Landsat 8 over agricultural area in Probolinggo, East Java
Authors: Wijayanto A K , Yusuf S M , Pambudi W A 
Published: May 2019

AbstractLAPAN-IPB Satellite which was developed by the National Agency of Aeronautics and Space (LAPAN) and Landsat 8 have quite equal specification. However, it is important to investigate the difference of characteristic between the two satellites since the Landsat 8 commonly used by Indonesian researcher in the agriculture field for years. The study was done in Probolinggo Regency which is located in East Java, Indonesia – has a large area of agriculture. Satellite data of LAPAN A3/IPB used in the analysis of its spectral characteristic over agricultural area was acquired on September 18, 2018, while the Landsat 8 image data was taken from acquisition date on September 12, 2018. Field data measurement was done by collecting spectral reflectance of some agricultural crops at study area consist of paddy, maize, sugar cane, and onion. Spectral reflectance from the four crops are quietly the same, except for paddy which has the lowest reflectance on peak of green band compared to other crops. Spectral profile of LAPAN-A3/IPB on Blue, Green and Red band are always lower than Landsat 8, while the NIR band is always higher. NDVI from Landsat 8 OLI ranged from -1 to 0.622844, while NDVI from LAPAN-A3/IPB ranged from -1 to 0.461655. NDVI from Landsat is able to differentiate water more clearly than LAPAN-A3/IPB, indicated by low NDVI value. It is concluded that LAPAN-A3/IPB has quite similar spectral characteristic compared to Landsat-8 OLI. Although there is some difference of spectral characteristic from some crops. It is recommended to consider the age or growth stage of each crop.
Inter-comparison of multiple Global Climate Model (GCM) data based on spatial pattern of rainfall over Indonesia
Authors: Aflahah Elania , Latifah Arnida Lailatul , Hidayat Rahmat , Hidayati Rini , Ihwan Andi 
Published: May 2019

Abstract
The Coupled Model Inter-comparison Project Phase 5 (CMIP5) is the output of many coupled atmosphere-ocean of global climate models (GCMs) and widely used for climate research, especially for driving regional climate model. There are more than 40 CMIP5 GCMs data available, but no single model can be considered as the best for every region. The use of CMIP5 GCMs data for rainfall projection in Indonesia is important to improve the accuracy of the monthly and seasonal rainfall forecast. Then, this study evaluates the capability of the CMIP5 GCMs data for Indonesia region by quantitatively comparing the spatial pattern of the precipitation mean and standard deviation of the CMIP5 data against GPCP, GPCC, and CRU data in the period 1980-2005. Furthermore, the composite analysis is conducted to observe the model performance in reproducing the precipitation characteristic over some areas in Indonesia. In conclusion, the models NorESM1-M, NorESM1-ME, GFDL-ESM2M, CSIRO-MK3-6-0 perform the rainfall mean better than others, while the standard deviation of the rainfall show that the models NorESM1-M, BNU-ESM, CMCC-CMS are superior in which NorESM1-M gives the best performance. The annual precipitation pattern of the model NorESM1-M over various areas in Indonesia is also highly correlated with the observations. Thus, the most suitable model for Indonesia region is NorESM1-M.
Land use classification based on object and pixel using Landsat 8 OLI in Kendari City, Southeast Sulawesi Province, Indonesia
Authors: Ramadhan Kete Surya Cipta , Suprihatin  , Tarigan Suria Darma , Effendi Hefni 
Published: May 2019

Abstract
Current development on method and technique for data processing in remote sensing has received a great importance, since it provides a base for a myriad of applications, including land use monitoring. OBIA- and pixel-based approach are commonly used as classification technique in remote sensing. This present work aimed to compare both approaches in classifying the land use in Kendari, Southeast Sulawesi Province, using Landsat 8 OLI (Operational Land Imager). Digital images were processed using both techniques with the use of support vector machine (SVM) algorithm. The 188 sampling spots in the study site were randomly determined, then classified into 5 groups of land use: water body, follow land, built up land, residential area, and vegetation. Data obtained were then validated according to data from google earth and ground check. The accuracy was assessed by confusion matrix method using Region of Interest (ROI). The results showed that OBIA-based classification coupled with SVM algorithm showed overall accuracy of 81.38%, Kappa coefficient of 78.77%, in which the accuracy was 9.57% higher than pixel-based classification. Based on this finding, OBIA was reported to produce a better performance in identifying land use in urban area.
Increasing of fish productivity by finding suitable FADs placement locations based on Landsat 8 Imagery’s analysis
Authors: Cinthia  , Handayani Tuty , Semedi Jarot Mulyo 
Published: May 2019

Abstract
The main fishing ground of Pacitan Regency are Pacitan Bay and Indian Ocean. In addition to traditional methods, Pacitan fishermen also use Fish Aggregating Devices(FADs) to catch fish. The use of FADs in areas that have suitable water quality can further improve their production. The purpose of this study was to determine the effective of fish production at FADs locations, which are located in areas with appropriate oceanic conditions. This applies for both fishermen who use fishing rods and those who use FADs. The data collection method in this study used Landsat 8 Imagery, with parameters used in this study including temperature, current velocity, turbidity, salinity, depth and abundance of chlorophyll-a. The method used in this research was Spatial analysis with GIS technique. As for obtaining production data, an interview was conducted with fishermen. The results showed that fish production from fishermen using FADs was 400% larger than that of fishermen by traditional fishing methods. Areas that are oceanographically very suitable for FAD placement produce fish with better quality than those that are satisfactorily suitable-with more than 75% of its production is large pelagic fish.
Crystalline structure and optical properties of thin film LiTaO3
Authors: Djohan N , Estrada R , Sevani N , Hardhienata H , Irzaman  
Published: May 2019

Abstract
The coatings of LiTaO3 material on p-type Si (100) substrates were fabricated by using Chemical Solution Deposition (CSD) technique. In the fabrication process, the spin coater is used to flatten the LiTaO3 solution on the p-type Si (100) substrates surface, which was set at 4000 rpm for 30 seconds. Furthermore, the coating on those substrates was annealed in the furnace (Nabertherm type B410) for 15 hours at 750°C, 800°C, and 850°C temperature. The study of crystalline structure was obtained through the X-Ray Diffraction (Shimadzu XRD-7000) measuring with the interval of angular diffraction 2θ from 10° to 80° in the increment of 0.02°. Moreover, the study of optical properties was observed using the spectrometer (Ocean Optics USB4000-UV-VIS). Based on the results of the study, obtained a hexagonal angle diffraction peak for the crystal structure, when viewed from the refractive index, the optical properties are sensitive to visible and ultraviolet light. The results of the crystalline structure and optical properties that are sensitive to visible and ultraviolet light can be used to improve the performance of satellite systems in the term of the optical remote sensing.