bluuebunny/crossref_metadata_2025 huggingface dataset:
Study of a collimation method as a nondestructive diagnostic diagnostic technique by PGNAA for salt distribution in concrete structures at RANS
Authors: Wakabayashi Yasuo , Hashiguchi Takao , Yoshimura Yuichi , Mizuta Maki , Ikeda Yujiro , Otake Yoshie
Published: March 2020

To meet strong demand for realizing an effective tool to diagnose salt distribution in concrete infrastructures, we have started a development of a new technique using a prompt gamma neutron activation analysis (PGNAA) at the RIKEN accelerator-driven compact neutron source (RANS). So far, by applying PGNAA we have experimentally confirmed that neutrons from RANS can detect small enough amounts of chlorine within the marginal concentration of around 1.2 kg/m3 to involve steel corrosion. In this study, we have proposed two methods to derive the salt depth profile which is critical information of steel corrosion start. The first one utilizes a difference in the intensity ratio of two different γ-ray energies of interest, which is depending on the depth where the neutron capture reaction arises inside the concrete. The second is called the collimator method that measure γ-rays coming through a collimator around detector. Detection of γ-ray associated with 35Cl coming from the assembly of concrete has been also simulated with conditions of neutrons from RANS and a collimator. The feasibility of the method was discussed.
Nucléaire spatial : besoins, contraintes et acceptation sociétale
Authors: Guidez Joël
Published: March 2020

Le nucléaire spatial intervient dans de multiples domaines, allant des missions d’exploration scientifique dans ou au-delà du système solaire, à des programmes de plus grande envergure visant des vols habités vers la Lune ou vers Mars. Cette large palette d’interventions va conduire à des applications extrêmement variées de la technologie nucléaire : fusées de transport, alimentation des stations orbitales, des systèmes d’exploration, des bases lunaires et/ou martiennes et des véhicules de circulation sur ces planètes.
L’atome, indispensable à l’exploration spatiale
Authors: Le Gros Gaïc
Published: March 2020

Assurer l’alimentation électrique des différents appareils parcourant l’espace est un défi que l’humanité a su relever avec un panel de technologies, dont les irremplaçables générateurs radioisotopiques, destinés à maintenir au chaud des composants (RHU) et à les alimenter en électricité (RTG). Aujourd’hui, de nouveaux modèles de générateurs thermoélectriques sont en développement en Europe. En ligne de mire : procurer une plus grande indépendance aux missions spatiales européennes.
Kolorektales Karzinom
Authors: Krome Susanne
Published: March 2020

Patienten mit kolorektalem Karzinom im Stadium III erhalten eine adjuvante, platinbasierte Chemotherapie, deren Dauer vom Risikostatus abhängt. Die Liquid Biopsy könnte eine wichtige Ergänzung zur Abschätzung des Rezidivrisikos sein. Der Nachweis war in einer Multicenterstudie postoperativ und nach Ende der Chemotherapie bedeutsam.
ESMO 2019 – Ovarialkarzinom
Authors: Schmale Ine
Published: March 2020

In der Behandlung des Ovarialkarzinoms stehen mit den PARP-Inhibitoren bereits zielgerichtete Substanzen für selektierte Patientinnen als Erhaltungstherapie nach Ansprechen auf eine Platin-haltige Erstlinientherapie zur Verfügung. Die auf dem ESMO 2019 präsentierten Studien zeigen mit der Kombination von PARP- und VEGF-gerichteten Therapien in der Erhaltung sowie die Applikation in Kombination mit der Erstlinienchemotherapie weitere Strategien für die Therapieoptimierung.
Cannabis in der Schmerzmedizin
Authors: Kretzschmar Alexander
Published: March 2020

Der „medical need“ in vielen Indikationen, für die Cannabinoide eine Rolle spielen könnten, ist offenbar so hoch, dass es für viele Patienten unzumutbar erschiene, auf größere, insbesondere höherrangige randomisierte kontrollierte Studien zu warten, obwohl solide Daten weiterhin dringend zur Beurteilung des klinischen Stellenwertes notwendig sind.
ESMO 2019: Nicht-kleinzelliges Lungenkarzinom
Authors: Schmale Ine
Published: March 2020

In der Therapie des nicht-kleinzelligen Lungenkarzinoms (NSCLC) sind zielgerichtete Therapien für EGFR- und ALK-mutierte Tumoren der Therapiestandard. Liegen keine molekularen Zielstrukturen vor, so kann mit Immuntherapien eine lang anhaltende Remission erreicht werden. Beim ESMO wurden wichtige Studienergebnisse zu beiden Therapiestrategien präsentiert.
SITC 2019: Siglec-15-Antikörper in klinischer Erprobung
Authors: Kretzschmar Alexander
Published: March 2020

Siglecs sind inhibitorische Immunglobuline, die auf Immunzellen exprimiert werden. Siglec-15 (S15) ist ein Mediator der T-Zell-Suppression und wird auf NSCLC- und anderen Tumorzellen sich gegenseitig ausschließend mit PD-L1 exprimiert. S15 wird daher als potenzielles therapeutisches Target in der Tumortherapie untersucht. Tolcher et al. stellten kürzlich auf der Jahrestagung der Society for Immunotherapy of Cancer einer multizentrischen Phase-I/II-Studie mit NC318, dem ersten monoklonalen Antikörper gegen S15, vor.
Big Data, Maschinenlernen und Blockchain
Authors: Bubenzer Rainer
Published: March 2020

Mit „Big Data“ – einem der wohl schwammigsten Begriffe der Informationstechnologie (IT), seitdem die Bundeskanzlerin das „Neuland“ Internet betreten hat (2013) – hat sich auch das wissenschaftliche Programm der DGHO-Jahrestagung 2019 beschäftigt. Bericht über ein thematisches Potpourri einer diesem und anderen Reizworten gewidmeten Sitzung.
The Use of Zirconium and Feldspathic Porcelain in the Management of the Severely Worn Dentition: A Case Report
Authors: Malkoc Meral Arslan , Sevimay Mujde , Yaprak Emre
Published: March 2020

The management of the interim phase of a complete oral rehabilitation in patients with severely worn dentition is often challenging due to the loss of occlusal vertical dimension, loss of tooth structure, uneven wear of teeth creating an uneven plane of occlusion, and para-functional habits. This case report describes the management of excessive tooth tissue loss in a 45 year old woman with a history of bruxism, esthetical complaints in anterior teeth, and impaired dental function due to reduced tooth height. The patient used occlusal splint for a month and than resection of the alveolar bone was performed on the vestibular sides of the maxillary anterior teeth, except the interdental alveolar crest. Maxillary anterior teeth were restored with zirconia porcelain. Feldspathic porcelain was chosen to restore remaining teeth in both jaws; the patient also was given an occlusion guard to protect the restoration against future bruxism. Regardless of the cause of occlusal instability, it is important that the restorative dentist should be able to recognize its signs such as tooth hypermobility, tooth wear, periodontal breakdown, occlusal dimpling, stress fractures, exostosis, muscle enlargement, and loss of posterior disclusion. When restoring the worn dentition, the clinician should bear in mind the five P’s: proper planning prevents poor performance. (Eur J Dent 2009;3:75-80)
Interdisciplinary Treatment of a Fused Lower Premolar with Supernumerary Tooth
Authors: Gadimli Cengiz , Sari Zafer
Published: March 2020

The objective of this report is to describe combined orthodontic and endodontic treatment of a fused mandibular premolar with supernumerary tooth. The patient was a 15 year old girl seeking orthodontic treatment for the correction of maxillary and mandibular crowding. Cephalometric examination revealed skeletally Class I relationship. The panoramic radiograph showed a fused tooth with two separate pulp chambers and two separate root canals connecting in apical third. After the endodontic treatment of the fused teeth, the stripping of the supernumerary tooth was performed to establish a Class I canine relationship and to correct midline deviation. At the end of the treatment, the crowding was resolved and positive overjet and overbite was achieved. (Eur J Dent 2011;5:349-353)
Platelets and Fibrinogen: Emerging Complexity in Trauma-Induced Coagulopathy
Authors: John Alexander E. , White Nathan J.
Published: March 2020

Trauma induces a change in nearly every observable aspect of hemostasis, generally tipping the balance toward trauma-induced coagulopathy (TIC) and bleeding in the critical early stages. Two particularly important aspects of TIC are platelets and fibrinogen, which are the primary determinants of clot formation and hemostasis. Their loss and dysfunction represent important transition points between coagulopathy phenotypes, highlighting their mechanistic roles in TIC as well as unveiling new potential avenues toward important diagnostic and therapeutic interventions. This review synthesizes current knowledge of platelets and fibrinogen during TIC, with a focus on emerging concepts related to their dysfunction and development of new therapeutic approaches.
Electrical detection of the antiferromagnetic transition in MnTiO3 ultrathin films by spin Hall magnetoresistance
Authors: Miura Kei , Fujiwara Kohei , Shiogai Junichi , Nojima Tsutomu , Tsukazaki Atsushi
Published: March 2020

We have studied the spin Hall magnetoresistance (SMR) arising at the interface of Pt and antiferromagnetic insulator MnTiO3 thin films. Using c axis oriented single-crystalline ilmenite-type MnTiO3 films on Al2O3 (0001) substrates grown by pulsed-laser deposition, we fabricated L-shaped multi-terminal Pt/MnTiO3 devices in which the longitudinal resistances of two orthogonally arranged channels can be simultaneously measured by the four-probe method. Magnetic field angular dependence of the magnetoresistance was consistent with symmetry relations for the SMR between spin-current polarization in Pt and magnetic moment in MnTiO3, evidencing the predominant SMR contribution. By utilizing distinct SMR responses of the two channels when a magnetic field was applied in parallel to one of the channels, we determined the Néel temperature (TN) to be 63 K in a 20-nm-thick MnTiO3 film, comparable to TN of a 40-nm-thick MnTiO3 film separately measured with a superconducting quantum interference device magnetometer. The electrically determined TN persisted down to the film thickness of 2.9 nm, indicating the robust antiferromagnetic ordering even at the surface of MnTiO3 ultrathin films.
On description of periodic magnetosonic perturbations in a quasi-isentropic plasma with mechanical and thermal losses and electrical resistivity
Authors: Perelomova Anna
Published: March 2020

Magnetosonic periodic perturbations in a uniform and infinite plasma model are considered. Damping due to compressional viscosity, electrical resistivity, and thermal conduction are taken into account, as well as some heating–cooling function, which may destroy the isentropicity of wave perturbations. The wave vector forms arbitrary angle θ with the equilibrium straight magnetic field, and all perturbations are functions of time and longitudinal coordinate. Variable θ and plasma-β bring essential difficulties in the description of magnetosonic perturbations, which may be fast or slow. Wave damping of each kind depends differently on θ and plasma-β. Longitudinal velocity, which is periodic at any distance from an exciter, is analytically constructed. It approximates the exact solution with satisfactory accuracy.
Mapping optical standing-waves of an open-access Fabry–Perot cavity with a tapered fiber
Authors: Ferri Francesco , Garcia Sébastien , Baghdad Mohamed , Reichel Jakob , Long Romain
Published: March 2020

We describe a method to map the standing-wave pattern inside an open-access Fabry–Perot optical cavity with sub-wavelength resolution by perturbing it with a commercially available tapered fiber. The method is applied to a fiber Fabry–Perot microcavity. We demonstrate its use in determining the relative position of the antinodes at two different wavelengths. In addition, we use the tapered optical fiber as a point-like source, allowing precise positioning of a microscope objective with respect to the cavity mode.
High-pressure behavior of a linear chain alkane, tricosane
Authors: Basu Abhisek , Murphy Patrick , Mookherjee Mainak , Haberl Bianca , Boehler Reinhard
Published: March 2020

Exploring the behavior of hydrocarbon under pressure is important for understanding its role in planetary sciences and also for exploring novel organic chemistry. In this study, we explored the high-pressure behavior of a linear-chain hydrocarbon, tricosane (C23H48), using Raman spectroscopy. We compressed tricosane up to 23 GPa and did not find any evidence for pressure-induced amorphization within the conditions explored in this study. Upon compression, we observe new modes in the low energy region 100–300 cm−1. In order to understand the appearance of these new modes at high pressures, we used complementary ab initio calculations and explored the effect of chain configurations (linear and bent) on the predicted Raman spectra. We find that these new modes observed at higher pressures are better explained by bent configuration of tricosane chains. Thus, based on high-pressure Raman spectra, it is very likely that a linear chain of tricosane is bent under pressure, i.e., it undergoes a pressure-induced trans-gauche transformation. It is also likely that such bent regions (i.e., kinks) will act as sites along which large chain hydrocarbons could dissociate into smaller chain lengths at extreme conditions relevant to the interiors of Jovian planets.
Landau–Devonshire derived phase diagram of the BiFeO3­–PbTiO3 solid solution
Authors: Hooper T. E. , Bell A. J.
Published: March 2020

Since the construction of the first structural phase diagram of the BiFeO3–PbTiO3 solid solution, there has been ambiguity as to the true location of the morphotropic phase boundary (MPB). In this study, a Landau–Devonshire derived phase diagram has been constructed in order to provide a mathematically derived perspective. The compositional dependence on properties has been modeled as a linear dependence between the Landau coefficients of each end member. It is found that the only structural phases found below TC are rhombohedral and tetragonal, which at 25 °C shows an MPB at 0.696BiFeO3–0.304PbTiO3. The MPB also shows temperature dependence similar to other ferroelectric solid solutions in which the tetragonal–rhombohedral phase transition moves toward higher BiFeO3 contents at higher temperatures. Although the replication of the experimentally observed phase diagram can be constructed, this method is found to be insufficient for describing the spontaneous strain behavior.
Numerical investigation of central breakup of large bubble induced by liquid jet
Authors: Cao Yuanwei , Macián-Juan Rafael
Published: March 2020

A large spherical bubble rising in quiescent liquid generally leads to the formation of a toroidal bubble (central breakup). In this paper, we investigate the bubble dynamics during the central breakup process using the three dimensional Volume of Fluid method implemented in OpenFOAM. The potential energy of the large bubble is converted into the kinetic energy of the liquid jet, resulting in the formation of the toroidal bubble. Before the central breakup of the bubble, a high pressure zone is formed on the top of the bubble due to the collision of the liquid jet with the top of the bubble. We report for the first time that a protrusion is formed on the top of the toroidal bubble for a large spherical bubble rising in quiescent liquid. The velocity of the gas inside the toroidal bubble around the liquid jet is much faster than that in other places after the central breakup, which leads to the formation of the protrusion against the restriction of the surface tension force. We find that the bubble size, liquid viscosity, and density can influence the formation of the toroidal bubble, while the influence of surface tension is negligible. We summarize the above influencing factors into two dimensionless numbers: Galilei (Ga) number and Eötvös number (Eo). In the end, we discover a simple linear relation between the jet Reynolds number and the Ga number by analyzing all numerical experiments.
Demonstration of a self-healing all-polymer distributed Bragg reflector laser
Authors: Lu Yunli , Lowther Zoe , Christianson Nicholas D. , Li Zhenpeng , Baer Eric , Kuzyk Mark G. , Dawson Nathan J.
Published: March 2020

Self-healing of an all-polymer distributed Bragg reflector laser is demonstrated. The lasing medium is a glycol-modified poly(ethylene terephthalate) co-polymer doped with rhodamine 6G. After the light output is reduced to 1/3 of its pristine value through photodegradation due to the pump, the laser is placed in the dark to allow it to heal. The laser fully recovered to its pre-damaged output power. A similar laser made with the rhodamine B chromophore is observed to only partially recover after photodegradation.
Forward to the past
Authors: LaPolla Randy J.
Published: March 2020

This paper argues that linguistic typology, and linguistics more generally, got off to a good start in the 19th century with scholars like Wilhelm von Humboldt and Georg von der Gabelentz, where the understanding was that each language manifests a unique world view, and it is important to study and compare those world views. This tradition is still alive, but was sidelined and even denigrated for many years due to the rise of Structuralism, which attempted to study language structures divorced from their linguistic and socio-cultural contexts. The paper reviews the understandings the early scholars had and points out their similarities with cutting edge current views in cognitive linguistics, construction grammar, and interactional linguistics, which had to be rediscovered due to the influence of Structuralism for so many years. It then argues that we should make linguistic typology (and linguistics more generally) more modern, scientific, and empirical by returning to our roots.
How does training shape English-Chinese sight translation behaviour?
Authors: Ho Chen-En , Chen Tze-Wei , Tsai Jie-Li
Published: March 2020

This study investigated cognitive aspects of sight translation by analysing the reading behaviour in the process and the output. In our empirical study, two groups of participants—interpreting trainees and untrained bilinguals—carried out three tasks: (a) silent reading, (b) reading aloud, and (c) sight translation. The results show that the two groups were almost identical in the first two tasks, further substantiating the similarity of their language command, but were drastically different in how they tackled sight translation. Interpreting trainees provided much more accurate, fluent, and adequate renditions with much less time and fewer fixations. However, their efficiency at information retrieval was statistically similar to that of the untrained bilinguals. Thus, interpreting trainees were more efficient by being more “economical” during reading, rather than by reading ahead faster, as some would intuitively expect. Chunking skills seem to have also been at play behind their remarkable performance.
Effective mixing due to oscillatory laminar flow in tubular networks of plasmodial slime moulds
Authors: Haupt Michael , Hauser Marcus J B
Published: March 2020

The plasmodium of the unicellular slime mould Physarum polycephalum forms an extended vascular network in which protoplasm is transported through the giant cell due to peristaltic pumping. The flow in the veins is always parabolic and it performs shuttle streaming, i.e., the flow reverses its direction periodically. However, particles suspended in the protoplasm are effectively and rapidly distributed within the cell. To elucidate how an effective mixing can be achieved in such a microfluidic system with Poiseuille flow, we performed micro-particle imaging velocimetry experiments and advected virtual tracers in the determined time-dependent flow fields. Two factors were found to be crucial for effective mixing: (i) flow splitting and flow reversals occurring at junctions of veins and (ii) small delays in the reversals of flows in the veins at a junction. These factors enhance the distribution of fluid volumes and hence promote mixing due to chaotic advection. From the residence time distributions of particles at a junction, it is estimated that about 10% of the volume is effectively redistributed at a junction during one period of the shuttle streaming. We presume that the principles of mixing unravelled in P. polycephalum represent a promising approach to achieve efficient mixing in man-made microfluidic devices.
Variable-K double trenches SOI LDMOS with high-concentration P-pillar*
Authors: Wu Lijuan , Zhu Lin , Chen Xing
Published: March 2020

A variable-K trenches silicon-on-insulator (SOI) lateral diffused metal–oxide–semiconductor field-effect transistor (MOSFET) with a double conductive channel is proposed based on the enhancement of low dielectric constant media to electric fields. The device features variable-K dielectric double trenches and a P-pillar between the trenches (VK DT-P LDMOS). The low-K dielectric layer on the surface increases electric field of it. Adding a variable-K material introduces a new electric field peak to the drift region, so as to optimize electric field inside the device. Introduction of the high-concentration vertical P-pillar between the two trenches effectively increases doping concentration of the drift region and maintains charge balance inside it. Thereby, breakdown voltage (BV) of the device is increased. The double conductive channels provide two current paths that significantly reduce specific on-resistance (R
on,sp). Simulation results demonstrate that a 17-μm-length device can achieve a BV of 554 V and a low on-resistance of 13.12 mΩ⋅cm2. The R
on,sp of VK DT-P LDMOS is reduced by 78.9% compared with the conventional structure.
Thermal desorption characteristic of helium ion irradiated nickel-base alloy*
Authors: Lv Shasha , Zhu Rui , Zhao Yumeng , Li Mingyang , Wang Guojing , Qiu Menglin , Liao Bin , Hua Qingsong , Cheng Jianping , Li Zhengcao
Published: March 2020

The nickel-base alloy is one of the leading candidate materials for generation IV nuclear reactor pressure vessel. To evaluate its stability of helium damage and retention, helium ions with different energy of 80 keV and 180 keV were introduced by ion implantation to a certain dose (peak displacement damage 1–10 dpa). Then thermal desorption spectroscopy (TDS) of helium atoms was performed to discuss the helium desorption characteristic and trapping sites. The desorption peaks shift to a lower temperature with increasing dpa for both 80 keV and 180 keV irradiation, reflecting the reduced diffusion activation energy and faster diffusion within the alloy. The main release peak temperature of 180 keV helium injection is relatively higher than that of 80 keV at the same influence, which is because the irradiation damage of 180 keV, helium formation and entrapment occur deeper. The broadening of the spectra corresponds to different helium trapping sites (He–vacancies, grain boundary) and desorption mechanisms (different He
n
V
m
size). The helium retention amount of 80 keV is lower than that of 180 keV, and a saturation limit associated with the irradiation of 80 keV has been reached. The relatively low helium retention proves the better resistance to helium bubbles formation and helium brittleness.
Generating mechanism of pathological beta oscillations in STN–GPe circuit model: A bifurcation study*
Authors: Wang Jing-Jing , Yao Yang , Gao Zhi-Wei , Li Xiao-Li , Wang Jun-Song
Published: March 2020

Parkinson’s disease (PD) is characterized by pathological spontaneous beta oscillations (13 Hz–35 Hz) often observed in basal ganglia (BG) composed of subthalamic nucleus (STN) and globus pallidus (GPe) populations. From the viewpoint of dynamics, the spontaneous oscillations are related to limit cycle oscillations in a nonlinear system; here we employ the bifurcation analysis method to elucidate the generating mechanism of the pathological spontaneous beta oscillations underlined by coupling strengths and intrinsic properties of the STN–GPe circuit model. The results reveal that the increase of inter-coupling strength between STN and GPe populations induces the beta oscillations to be generated spontaneously, and causes the oscillation frequency to decrease. However, the increase of intra-coupling (self-feedback) strength of GPe can prevent the model from generating the oscillations, and dramatically increase the oscillation frequency. We further provide a theoretical explanation for the role played by the inter-coupling strength of GPe population in the generation and regulation of the oscillations. Furthermore, our study reveals that the intra-coupling strength of the GPe population provides a switching mechanism on the generation of the abnormal beta oscillations: for small value of the intra-coupling strength, STN population plays a dominant role in inducing the beta oscillations; while for its large value, the GPe population mainly determines the generation of this oscillation.
Electromagnetically induced transparency and electromagnetically induced absorption in Y-type system
Authors: Mal Kalan , Islam Khairul , Mondal Suman , Bhattacharyya Dipankar , Bandyopadhyay Amitava
Published: March 2020

The propagation of a probe field through a four-level Y-type atomic system is described in the presence of two additional coherent radiation fields, namely, the control field and the coupling field. An expression for the probe response is derived analytically from the optical Bloch equations under steady state condition to study the absorptive properties of the system under probe field propagation through an ensemble of stationary atoms as well as in a Doppler broadened atomic vapor medium. The most striking result is the conversion of electromagnetically induced transparency (EIT) into electromagnetically induced absorption (EIA) as we start switching from weak probe regime to strong probe regime. The dependence of this conversion on residual Doppler averaging due to wavelength mismatch is also shown by choosing the coupling transition as a Rydberg transition.
Effect of ECH/ECCD on energetic-particle-driven MHD modes in helical plasmas
Authors: Yamamoto S. , Nagasaki K. , Nagaoka K. , Varela J. , Cappa Á. , Ascasíbar E. , Castejón F. , Fontdecaba J.M. , García-Regaña J.M. , González-Jerez Á. , Ida K. , Ishizawa A. , Isobe M. , Kado S. , Kobayashi S. , Liniers M. , López-Bruna D. , Marushchenko N. , Medina F. , Melnikov A. , Minami T. , Mizuuchi T. , Nakamura Y. , Ochando M. , Ogawa K. , Ohshima S. , Okada H. , Osakabe M. , Sanders M. , Velasco J.L. , Weir G. M. , Yoshinuma M.
Published: March 2020

The effect of electron cyclotron heating (ECH) and electron cyclotron current drive (ECCD) on energetic-particle (EP)-driven magnetohydrodynamic (MHD) modes is studied in the helical devices LHD, TJ-II and Heliotron J. We demonstrate that EP-driven MHD modes, including Alfvén eigenmodes (AEs) and energetic particle modes (EPMs), can be controlled by ECH/ECCD. In the LHD device, which has a moderate rotational transform and a high magnetic shear, co-ECCD enhances toroidal AEs (TAEs) and global AEs (GAEs), while counter-ECCD stabilizes them, which improves the neutron rate compared with the co-ECCD case. Counter-ECCD decreases the core rotational transform and increases the magnetic shear, strengthening the continuum damping on the shear Alfvén continua (SAC). In the TJ-II device, which has a high rotational transform, moderate magnetic shear and low toroidal field period, helical AEs (HAEs) appear when the HAE frequency gap of the SAC is changed by counter-ECCD combined with a bootstrap current and neutral-beam-driven current. On the other hand, both co- and counter-ECCD are effective in stabilizing GAEs and EPMs in the Heliotron J device, which has a low rotational transform and low magnetic shear. The experimental results indicate that the magnetic shear has a stabilizing effect regardless of its sign. Modeling analysis using the FAR3d code shows that the growth rates are reduced by both co- and counter-ECCD in Heliotron J, reproducing the experimental results. ECH only affects EP-driven MHD modes, and the experimental results show that the effect depends on the magnetic configuration. In Heliotron J, some modes are stabilized with an increase in ECH power in the low-bumpiness magnetic configuration, while some modes are destabilized in the high- and medium-bumpiness magnetic configurations.
The effect of driving on model C interfaces
Authors: Dean David S , Gersberg Paul , Holdsworth Peter C W
Published: March 2020

We consider the effect of uniform driving on the interface between two phases which are described by model C dynamics. The non-driven system has a classical Gaussian interface described by capillary wave theory. The model under driving retains Gaussian statistics but the interface statistics are modified by driving, notably the height fluctuations are suppressed and the correlation length of the fluctuations is increased. The model we introduce can also be used as a model for the effect of activity on interface dynamics.
Application of Android System for Anti-Drug Information
Authors: Maiyana Efmi , Susanti Mira , Supratman  , Tria Yuninda , Ramdalel
Published: March 2020

Drugs caused the rehabilitee and damage the behavior and mind of men. Then, it’s also cause the future life of youth come dullness. Other while, the circulation of drug sale has been using the technology information to catch the target of the target of drugs users. There are many young generation use android. So the android can purposed to prevent the drugs consumption in the youth life. The research in to build an anti drugs application on android basic. It’s function to held an interactive dialogue and accommodate the youth creativity, then drug education regarding to improve the service and the young generation care in millennial age for drug mobility eradicating.
Optimization Sentiments of Analysis from Tweets in myXLCare using Naïve Bayes Algorithm and Synthetic Minority Over Sampling Technique Method
Authors: Saputra Dedi Dwi , Gata Windu , Wardhani Nia Kusuma , Parthama Ketut Sakho , Setiawan Hendra , Budilaksono Sularso , Yogatama Dimas , Hadiyatna Agus , Purnamasari Endah Putri , Pratama Bryan , Novianti Deny
Published: March 2020

Text mining can be used to classify opinions about complaints or not complaints experienced by XL customers. This study aims to find and compare classifications in the sentiments of analysis from the view of XL customers. This dataset was derived from tweets of XL customers written on myXLCare Twitter account. In text mining techniques, “transform case”, “tokenize”, “token filters by length”, “n-gram”, “stemming” were used to build classification and sentiments of analysis. Gataframework tools were used to help during preprocessing and cleansing processes. RapidMiner is used to help create the sentiment of analysis to search and compare two different classifications methods between datasets using the Naïve Bayes algorithm only and Naïve Bayes algorithm with Synthetic Minority Over-sampling Technique (SMOTE). The results of the two methods in this study found that the highest results were using the Naïve Bayes algorithm with Synthetic Minority Over-sampling Technique (SMOTE) with an accuracy of 86.33%, precision 82.85%, and recall ratio 92.38%.
The Optimization of Mastoid CT Image Using Windows and Kernel Reconstructions
Authors: Darmini  , Ari Setiyono Pamungkas , Rochmayanti Dwi , Nino Kurniawan Andrey , Nugroho Setiawan Agung
Published: March 2020

CT scan can be used to show the anatomical and pathological evaluation of Mastoid bones where an X-ray across it to create a cross-sectional image with an advanced computer. This imaging modality allows the radiologist to look at different levels of the bone ridge behind the ear. In our hospital, this procedure needs to be improved. Radiographer could make optimization by adjusting windows and developing kernel to maintain the image quality. This study aimed to obtain the optimum image of Mastoid bones, using variations of window and kernel reconstruction. The study was descriptive quantitative with an experimental approach. It resulted in eight images of two windowing levels (sinus and inner ear) and four kernel variations (smooth, medium, sharp, and ultra-sharp). Three radiologists evaluated the injury, bleedin, and soft tissue abnormalities images. The result showed that all window settings are acceptable. Kernel reconstructions have no different anatomical image information in soft tissue, Internal Auditory Canal, and External Auditory Canal. There is a difference for overall anatomical information of Mastoid bones (p value<0.05). Highest values of mean rank are obtained from sharp and ultra-sharp. Our recommendations are using the H.20s smooth kernel for soft tissue abnormalities and H.70s sharp kernel for fracture and bleeding cases.
Predicting Relegation Clubs in Italian Serie A with Method based C4.5 Decision Tree Algorithm
Authors: Syukmana F , Wahyudi E , Gata W , Wahono H , Febianto N I , Kuntoro A Y , Nitra R O , Effendi L , Saputra D D , Sulaeman O R
Published: March 2020

The purpose of this study is to help small clubs from Italian Serie A in finding the minimum targets to avoid relegation into Serie B competition (below Serie A league). Relegation will reduce the club’s income from TV revenues and the decline of enthusiastic supporters. Based on the data from the final standings (seasons 2006 until 2018), this can be explained by the Decision Tree method using the C4.5 algorithm. The methods used in this study are data collection, data pre-processing, model proposal, model testing, and model validation. In this study, it is expected that the value of accuracy exceeds 85% to achieve a proper classification.
Comparison of Data Mining Algorithm: PSO-KNN, PSO-RF, and PSO-DT to Measure Attack Detection Accuracy Levels on Intrusion Detection System
Authors: Budilaksono Sularso , Riyadi Andri Agung , Azhari Lukman , Saputra Dedi Dwi , Suwarno M. Anno , Agus Suwartane I Gede , Jupriyanto  , Ramadhan Andika , Utomo Agus Prasetyo , Fauzi Achmad
Published: March 2020

Nowadays, computer networks are widely used to exchange valuable and confidential data information between servers to computers or cellular devices. Access to user control and use of software or hardware as a firewall often experience security problems. Unauthorized access to information through computer networks continues to occur and tends to increase. This study examines the attack detection mechanism by using three data mining algorithms based on particle swarm optimization (PSO), namely PSO-K Nearest Neighbor, PSO-Random Forest, and PSO-Decision Tree in the Canadian Institute for Cybersecurity Dataset (CICIDS2017). The initial experiment showed that the approach using the PSO-RF method was able to produce the highest accuracy of attack detection. Accuracy values generated using the PSO-RF algorithm with a combination of the number of trees and maximal depth = 20 in the CICIDS2017 dataset are intact higher than other proposed algorithms. The highest accuracy of attack detection in the CICIDS2017 dataset is intact, which is 99.76%. In the CICIDS2017 dataset 50% Benign and 50% Attack it turns out that the PSO-RF algorithm with a combination of the number of trees and maximal depth = 20 also gets the highest accuracy value of 99.67%.
Designing an Ultrasonic Sensor Stick Prototype for Blind People
Authors: Budilaksono Sularso , Bertino Bias , Agus Suwartane I Gede , Rosadi Ahmad , Suwarno M. Anno , Purtiningrum Susi Wagiyati , Sari Yunita , Suhandono Erwin , Sari Sakti Essy Malays , Gustina Dian , Agung Riyadi Andri
Published: March 2020

This study aims to develop a tool that can be used to detect obstacles for blind people. This tool also uses the HC-SR04 ultrasonic sensor. The method used in the manufacture of blind assistive prototypes in the form of sticks using Arduino and Ultrasonic Sensors for blind people with the method obtained by hardware design techniques used consists of ATMEGA328 as the main controller, Ultrasonic sensor HS-SRF04 as detecting objects and LM2596 Regulator modules used for lowering the DC voltage level, this study has produced a prototype design stick for blind people using sensor technology to help alert and move blind people who are able to detect objects at a minimum distance of 7 centimeters with output in the form of sound and vibration. The resulting stick has a frame consisting of 0.5-inch PVC material consisting of two parts, the stick rod and the sensor unit.
A Bayesian Reasoning for Earthquake Prediction Based on IoT System
Authors: Andi Purnomo Muhammad Ridwan
Published: March 2020

Yogyakarta, one of the cities in Indonesia, has the most active volcano in Indonesia, namely Mount Merapi. Volcanic activity of Merapi often results in earthquakes, either weak or strong earthquakes. Those earthquakes sometimes are dangerous to the community; therefore, early warnings for earthquakes are very necessary. This paper presents development of earthquake prediction system based on internet of things (IoT) that equipped with a well known data mining techniques for prediction called Bayesian reasoning. A sequential data about earthquakes occurrence has been used to predict earthquake occurrence in the future. A cloud database is used to store real time earthquake occurrence data and a mobile application has developed to give early warning and visualise the earthquake data to the users. Testing of the system shows the proposed earthquake prediction system has high accuracy with Mean Squared Error (MSE) value is 0.127.
The Development of Character Education Curriculum Model for Islamic Elementary Schools In Muaro Jambi
Authors: Nurhasnah  , M.Ridha D.S. , Buska Wahyudi , Prihartini Yogia
Published: March 2020

This research aims to provide a valid character education for grade schools. This research was done due to the ineffectiveness of character education and development in grade schools. This developmental research was done using the ADDIE model with five phases; analysis of needs, product design, product development, implementation and evaluation of the research product. Data collection was done using an observational guide, interview, and documentation for curriculum designing, and questionnaires which will then be analyzed in order to find out the condition of current character education. Samples were chosen using a purposive sampling method, and the data was qualitatively and quantitatively processed. The research result shows that the current character education can be considered as good. The designed character education curriculum was validated by the curriculum, material, and language experts. Validation result shows that the curriculum is valid with minor revision. Field implementation shows that character education curriculum is practical. The curriculum’s effectiveness was tested using test result from selected schools. At SDN/MIN Pematang Gajah, the achieved criteria are considered as high with 98% lesson completion, at SDN/MIN Sebapo and SDN/MIN Tarikan the achieved criteria is considered as moderate with 75% and 78% lesson completion rate. Teacher’s book practicality was deemed as practical with a general score of 4,5.
The Use of Visual Art as an Alternative Learning to Develop Storytelling Ability of Elementary School Students
Authors: Zulfitria  , Arif Zainal , Dewi Happy Indira , Susanto Ahmad
Published: March 2020

This study aimed to perceive the use of visual art as an alternative learning to develop storytelling ability of elementary school students. Storytelling for children is very important because by telling stories their brain will register certain stories and events that have occurred, give moral messages and can strengthen the power of memory brain. Visual art is used as their learning media, so their ability to tell stories is more fun and creative. This study uses qualitative methods, the data was collected using observation sheets, interviews, and documentation. The population of the study were 66 students, class of IV Parung Bingung Elementary School 1 in Depok. The sample taken were 15 students. Based on the results of the study it can be seen that students can easily tell stories using visual art media in the learning process. Sharpening their storytelling ability can be used as a media to develop students’ personalities and moralities at such young age, so that it creates communication that is harmony between parents and their children at home and teachers will be helped in the learning process so that the purposes of the study is within reach.
Object Tracking System on Ultrawide Video from Double Camera using Motion Detector
Authors: Atikasari Tiara Cahya , Jusman Yessi , Syahputra Ramadoni , Widyasmoro
Published: March 2020

This research aims to design, test, and analyze the object tracking application system using a motion detector method that is able to take the output image of several cameras by combining the output images of the two cameras into a wider field of view (FOV). This research uses 2 cameras, i3-6006U laptop camera and Logitech C270 HD webcam using OpenCV and python programming language. The stitching results from the initialization of the two cameras are able to detect the motion of objects performed on panoramatic videos in realtime by showing time in detail starting from days, dates, hours, minutes and seconds. This object tracking application system has been tested in Adi Sucipto airport exactly in the area of arrival and departure of passengers. The system can detected the motion in the stitching images by exploring it in red rectanguler in the real time video.
Students’ Understanding of Mathematical Concepts Using Manipulative Learning Media in Elementary Schools
Authors: Isnaniah  , Imamuddin M.
Published: March 2020

This study aims to analyze students’ understanding of mathematical concepts in the material of addition and subtraction of integers by using manipulative media in the form of colored paperboard designed into rectangular shapes. This research was conducted in class IV SDN 02 Koto Tangah. The subjects in this study are class IVB students with the total number of 25 students. The instrument used in this research was a subjective test that had fulfilled mathematical concept indicators and test indicators. Data analysis was carried out by using the N-Gain formula developed by Meltzer (2002 and then was interpreted based on the classification of the N-Gain index from Hake (1999). The results of this study reveal that mathematics learning by using manipulative media in the form of rectangular shape designed paperboard can improve students’ understanding of mathematical concepts in the material of addition and subtraction of integers.
Enhancing Students Ability in Analyzing Image Formation on Lens and Mirror Using Ray Optics
Authors: Erfan M , Maulyda M A , Gunawan G , Sari N , Ratu T
Published: March 2020

This study aims to determine the effect Android Ray Optics Application toward student’s ability in analyzing image formation on lens and mirror. This research is a quasi-experimental research with pre-test-post-test control group design. The population in this study were all prospective elementary school teacher candidates of fifth-semester students of Universitas Muhammadiyah Mataram. The sampling technique used was purposive sampling and class A (30 students) as an experimental class and Class C (30 students) as a control class. Data were collected by a descriptive test about the analysis of images formations on flat mirrors, curved mirrors, and lenses. The data were analyzed by independent sample t-test and normalized Gain test. The results showed that after treatment, students in the experimental class has a higher ability in analyzing images formations than the control one (t-value = 9,660 & t-table = 2,002). It’s concluded that Ray Optics is effective in improving student’s ability in analyzing image formation on lens and mirror concepts.
Deforestation spillovers from oil palm sustainability certification
Authors: Heilmayr Robert , Carlson Kimberly M , Benedict Jason Jon
Published: March 2020

Environmental policies that impose restrictions within one location may be undermined or reinforced by ‘spillover effects,’ the movement of actors, processes, or knowledge to other locations. Such spillovers are an important consideration in the design of interventions seeking to reduce commodity driven deforestation. In these settings, global markets and mobile actors can move deforestation and conservation behaviors over large distances, complicating efforts to measure and manage spillovers. Here we quantify forest loss and conservation spillovers from the Roundtable on Sustainable Palm Oil (RSPO) certification system in Indonesian Borneo (Kalimantan). We examine whether spillovers from certification are transmitted through corporate groups (i.e. to non-certified, RSPO member-held plantations) or local agricultural markets (i.e. to lands near certified mills). We find that, from 2009 to 2016, spillovers from RSPO certification reduced deforestation within Indonesia’s forest estate, but increased deforestation in areas zoned for agricultural use. The private RSPO certification system has complemented public conservation by aligning de facto land cover with central government land zoning policy. Despite these benefits, aggregate avoided deforestation attributed to direct and spillover effects was statistically and substantively insignificant when compared to the total deforestation occurring inside all of Kalimantan’s oil palm concessions. While certification has reduced illegal deforestation, stronger sector-wide action appears necessary to ensure that oil palm production is no longer a driver of forest loss.
Adaptive iterative linearization Galerkin methods for nonlinear problems
Authors: Heid Pascal , Wihler Thomas
Published: March 2020

A wide variety of (fixed-point) iterative methods for the solution of nonlinear equations (in Hilbert spaces) exists. In many cases, such schemes can be interpreted as iterative local linearization methods, which, as will be shown, can be obtained by applying a suitable preconditioning operator to the original (nonlinear) equation. Based on this observation, we will derive a unified abstract framework which recovers some prominent iterative schemes. In particular, for Lipschitz continuous and strongly monotone operators, we derive a general convergence analysis. Furthermore, in the context of numerical solution schemes for nonlinear partial differential equations, we propose a combination of the iterative linearization approach and the classical Galerkin discretization method, thereby giving rise to the so-called iterative linearization Galerkin (ILG) methodology. Moreover, still on an abstract level, based on two different elliptic reconstruction techniques, we derive a posteriori error estimates which separately take into account the discretization and linearization errors. Furthermore, we propose an adaptive algorithm, which provides an efficient interplay between these two effects. In addition, the ILG approach will be applied to the specific context of finite element discretizations of quasilinear elliptic equations, and some numerical experiments will be performed.
A Schwarz lemma for locally univalent meromorphic functions
Authors: Fournier Richard , Kraus Daniela , Roth Oliver
Published: March 2020

We prove a sharp Schwarz-type lemma for meromorphic functions with spherical derivative uniformly bounded away from zero. As a consequence we deduce an improved quantitative version of a recent normality criterion due to Grahl and Nevo [J. Anal. Math. 117 (2012), 119–128] and Steinmetz [J. Anal. Math. 117 (2012), 129–132], which is asymptotically best possibe. Based on a well-known symmetry result of Gidas, Ni, and Nirenberg for nonlinear elliptic PDEs, we relate our Schwarz–type lemma to an associated nonlinear dual boundary extremal problem. As an application we obtain a generalization of Beurling’s extension of the Riemann mapping theorem for the case of the spherical metric.