bluuebunny/crossref_metadata_2025 huggingface dataset:
A global view of the inner accretion and ejection flow around super massive black holes
Authors: Giustini Margherita , Proga Daniel
Published: August 2019

Context.Understanding the physics and geometry of accretion and ejection around super massive black holes (SMBHs) is important to understand the evolution of active galactic nuclei (AGN) and therefore of the large scale structures of the Universe.

Aims.We aim at providing a simple, coherent, and global view of the sub-parsec accretion and ejection flow in AGN with varying Eddington ratio,ṁ, and black hole mass,MBH.

Methods.We made use of theoretical insights, results of numerical simulations, as well as UV and X-ray observations to review the inner regions of AGN by including different accretion and ejection modes, with special emphasis on the role of radiation in driving powerful accretion disk winds from the inner regions around the central SMBH.

Results.We propose fiveṁregimes where the physics of the inner accretion and ejection flow around SMBHs is expected to change, and that correspond observationally to quiescent and inactive galaxies; low luminosity AGN (LLAGN); Seyferts and mini-broad absorption line quasars (mini-BAL QSOs); narrow line Seyfert 1 galaxies (NLS1s) and broad absorption line quasars (BAL QSOs); and super-Eddington sources. We include in this scenario radiation-driven disk winds, which are strong in the highṁ, largeMBHregime, and possibly present but likely weak in the moderateṁ, smallMBHregime.

Conclusions.A great diversity of the accretion/ejection flows in AGN can be explained to a good degree by varying just two fundamental properties: the Eddington ratioṁand the black hole massMBH, and by the inclusion of accretion disk winds that can naturally be launched by the radiation emitted from luminous accretion disks.
Stationary Kirchhoff equations involving critical growth and vanishing potential
Authors: Marcos do Ó João , Souto Marco , Ubilla Pedro
Published: August 2019

We establish the existence of positive solutions for a class of stationary Kirchhoff-type equations defined in the whole ℝ3 involving critical growth in the sense of the Sobolev embedding and potentials, which may decay to zero at infinity. We use minimax techniques combined with an appropriate truncated argument and a priori estimate. These results are new even for the local case, which corresponds to nonlinear Schrödinger equations.
Long-time behavior of numerical solutions to nonlinear fractional ODEs
Authors: Wang Dongling , Xiao Aiguo , Zou Jun
Published: August 2019

In this work, we study the long time behavior, including asymptotic contractivity and dissipativity, of the solutions to several numerical methods for fractional ordinary differential equations (F-ODEs). The existing algebraic contractivity and dissipativity rates of the solutions to the scalar F-ODEs are first improved. In order to study the long time behavior of numerical solutions to fractional backward differential formulas (F-BDFs), two crucial analytical techniques are developed, with the first one for the discrete version of the fractional generalization of the traditional Leibniz rule, and the other for the algebraic decay rate of the solution to a linear Volterra difference equation. By means of these auxiliary tools and some natural conditions, the solutions to F-BDFs are shown to be contractive and dissipative, and also preserve the exact contractivity rate of the continuous solutions. Two typical F-BDFs, based on the Grünwald–Letnikov formula and L1 method respectively, are studied. For high order F-BDFs, including convolution quadrature schemes based on classical second order BDF and product integration schemes based on quadratic interpolation approximation, their numerical contractivity and dissipativity are also developed under some slightly stronger conditions. Numerical experiments are presented to validate the long time qualitative characteristics of the solutions to F-BDFs, revealing very different decay rates of the numerical solutions in terms of the the initial values between F-ODEs and integer ODEs and demonstrating the superiority of the structure-preserving numerical methods.
Update Mammakarzinom 2019 Teil 3 – aktuelle Entwicklungen bei der kurativen Behandlung von Mammakarzinom-Patientinnen: Eine Übersicht und Bewertung durch ein internationales Expertenpanel
Authors: Kolberg Hans-Christian , Schneeweiss Andreas , Fehm Tanja N. , Wöckel Achim , Huober Jens , Pontones Constanza , Titzmann Adriana , Belleville Erik , Lux Michael P. , Janni Wolfgang , Hartkopf Andreas D. , Taran Florin-Andrei , Wallwiener Markus , Overkamp Friedrich , Tesch Hans , Ettl Johannes , Lüftner Diana , Müller Volkmar , Schütz Florian , Fasching Peter A. , Brucker Sara Y.
Published: August 2019

Die Behandlung von Mammakarzinom-Patientinnen in der kurativen Situation ist in vielfacher Hinsicht besonders. Hierbei ist die lokale Therapie mit Operation und Strahlentherapie zentraler Aspekt der Behandlung. Ziel ist eine komplette Elimination aller Tumorzellen am Ort der Primärerkrankung bei gleichzeitigem Bestreben, die Langzeitfolgen so gering wie möglich zu halten. Die immer weitere Reduktion der Radikalität der Lokaltherapie steht auch weiterhin im Blickpunkt. In Bezug auf die Systemtherapie haben sich in den letzten beiden Jahrzehnten Chemotherapien mit Taxanen, Anthrazyklinen und teilweise auch platinhaltigen Chemotherapien etabliert. Der Kontext der Nutzung wird immer genauer definiert. Ebenso gibt es bei der antihormonellen Therapie Fragen, die auch nach Einführung der Aromatasehemmer immer noch weiter definiert werden müssen, wie beispielsweise die Länge der Therapie oder die ovarielle Suppression bei prämenopausalen Patientinnen. Letztendlich soll die Behandlung von frühen Mammakarzinom-Patientinnen immer personalisierter werden. Prognostische genexpressionistische Tests könnten möglicherweise Therapieentscheidungen unterstützen. Ebenso muss überlegt werden, wie ein möglicher Einsatz von neuen Therapien, wie Checkpoint-Inhibitoren und CDK4/6-Inhibitoren, in der Praxis aussehen könnten, sobald hier Studienergebnisse vorliegen. Diese Übersichtsarbeit beschäftigt sich mit den Hintergründen zu aktuellen Abstimmungen, die das internationale St.‑Gallen-Expertenpanel in Wien 2019 für aktuelle Fragen in der Behandlung von Mammakarzinom-Patientinnen in der kurativen Situation vorgenommen hat.
Efficacy and safety of over-the-scope clips for gastrointestinal bleeding: a systematic review and meta-analysis
Authors: Chandrasekar Viveksandeep Thoguluva , Desai Madhav , Aziz Muhammad , Patel Harsh K. , Gorrepati Venkata Subhash , Jegadeesan Ramprasad , Rai Tarun , Sathyamurthy Anjana , Murino Alberto , Hassan Cesare , Repici Alessandro , Sharma Prateek
Published: August 2019

Background The over-the-scope clip (OTSC) has been increasingly utilized for the management of gastrointestinal (GI) bleeding. Limited efficacy data are currently available from large-scale studies.

Methods An electronic database search was conducted for eligible articles using OTSCs for hemostasis in GI bleeding. The primary outcome was the rate of definitive hemostasis after primary hemostasis and without rebleeding at follow-up. Secondary outcomes were: primary technical success, primary clinical success, rebleeding, and failure rates. Pooled rates were expressed as proportions of patients with events over total patients, 95 % confidence limits (CI) with heterogeneity, and P values of < 0.05 for significance.

Results A total of 21 studies (n = 851) were analyzed (62.2 % males), with a median patient age of 69.7 years. The definitive hemostasis rate was 87.8 % (95 %CI 83.7 % – 92 %) after a median follow-up of 56 days. The OTSC was successfully deployed in 97.8 % of patients (95 %CI 96.7 % – 98.9 %) and the primary clinical success rate was 96.6 % (95 %CI 95.1 % – 98.2 %). Rebleeding was seen in 10.3 % of patients (95 %CI 6.5 % – 14.1 %). The failure rate of OTSCs was 9 % (95 %CI 5.2 % – 12.8 %) when used as first-line treatment and 26 % (95 %CI 16.1 % – 36.0 %) when used as second-line treatment.

Conclusion This systematic review showed high rates of definitive hemostasis, technical success, and clinical success, along with low rebleeding rates when OTSCs were used for the treatment of GI bleeding. The lack of randomized controlled trials of OTSC vs. other therapies makes comparison with conventional treatment difficult.
Global Use of Idarucizumab in Clinical Practice: Outcomes of the RE-VECTO Surveillance Program
Authors: Fanikos John , Murwin Debra , Gruenenfelder Fredrik , Tartakovsky Igor , França Lionel Riou , Reilly Paul A. , Kermer Pawel , Wowern Fredrik von , Lane Deirdre A. , Butcher Ken
Published: August 2019

Idarucizumab was approved for the reversal of dabigatran in 2015. We investigated whether postapproval usage patterns of idarucizumab in a real-world setting reflect those observed in the pivotal trials. No safety or efficacy data were collected in this medical record-based observational study. RE-VECTO, a global postapproval, international, surveillance program, involved hospital pharmacies in countries where idarucizumab was licensed and dispensed (August 2016–June 2018). Characteristics of sites prescribing idarucizumab and of eligible patients (≥ 18 years old and receiving idarucizumab regardless of prior oral anticoagulant use), as well as idarucizumab utilization data, were collected and analyzed descriptively. Sixty-one sites enrolled 359 patients. Most pharmacies (85.2%) were centralized, and the median idarucizumab units stocked per hospital was 2.0 (interquartile range, 1.0–3.0). Almost three-quarters of patients were elderly (74.9% aged > 70 years), and only four (1.1%) had received idarucizumab before. Nearly all patients were treated with dabigatran (97.5%). There was a low frequency of unapproved dabigatran dosage regimens (3.3%). Life-threatening or uncontrolled bleeding was the most frequent indication for idarucizumab (57.7%), followed by emergency surgery/urgent procedure (35.9%). Of the life-threatening bleeding events, the most frequent were gastrointestinal tract (44.4%) and intracranial (38.6%). Most patients (95.0%) were given the full dose of two vials (2 × 2.5 g) of idarucizumab initially, and very few (1.7%) received a second dose. Of those patients requiring emergency or scheduled/planned surgery/procedures, 25.5% underwent gastrointestinal and/or abdominal surgery/procedures. Real-world usage patterns of idarucizumab provide valuable insights into emergency reversal strategies. Off-label use was minimal.
Transition between multimode oscillations in a loaded hair bundle
Authors: Wu Fuqiang , Wang Runxia
Published: August 2019

In this paper, we study the dynamics of an autonomous system for a hair bundle subject to mechanical load. We demonstrated the spontaneous oscillations that arise owing to interactions between the linear stiffness and the adapting stiffness. It is found that by varying the linear stiffness, the system can induce a weakly chaotic attractor in a certain region where the stable periodic orbit is infinitely close to a parabolic curve composed of unstable equilibrium points. By altering the adapting stiffness associated with the calcium concentration, the system is able to trigger the transition from the bistable resting state, through a pair of symmetric Hopf bifurcation, into the bistable limit cycle, even to the chaotic attractor. At a negative adapting stiffness, the system exhibits a double-scroll chaotic attractor. According to the method of qualitative theory of fast-slow decomposition, the trajectory of a double-scroll chaotic attractor in the whole system depends upon the symmetric fold/fold bifurcation in a fast system. Furthermore, the control of the adapting stiffness in the improved system with two slow variables can trigger a new transition from the bistable resting state into the chaotic attractor, even to the hyperchaotic attractor by observing the Lyapunov exponent.

At the request of the authors, this article is being retracted effective 13 April 2020.
Diffusion of tRNA inside the ribosome is position-dependent
Authors: Yang Huan , Bandarkar Prasad , Horne Ransom , Leite Vitor B. P. , Chahine Jorge , Whitford Paul C.
Published: August 2019

In recent years, there has been a growing interest to quantify the energy landscape that governs ribosome dynamics. However, in order to quantitatively integrate theoretical predictions and experimental measurements, it is essential that one has a detailed understanding of the associated diffusive properties. Here, all-atom explicit-solvent simulations (50 μs of aggregate sampling) predict that the diffusion coefficient of a tRNA molecule will depend on its position within the ribosome. Specifically, during aa-tRNA accommodation (i.e., the process by which tRNA enters the ribosome), the apparent diffusion coefficient decreases by approximately an order of magnitude. By comparing these to values obtained with an energetically “smooth” model, we show that the observed nonuniform behavior likely arises from electrostatic and solvation interactions between the tRNA and ribosome. These calculations also reveal the hierarchical character of ribosomal energetics, where steric interactions induce a large-scale free-energy barrier, and short-scale roughness determines the rate of diffusive movement across the landscape.
Western Bulldogs Sons of the West Program ripple effects: building community capacity
Authors: Naccarella Lucio , Pickering-Gummer David , Gannon Dimity , Dell'Aquila Catherine , Huxtable Alyssa , Keane Kieran
Published: August 2019

Professional sporting organisations can provide lifestyle-based community health improvement programs. Since 2014, the Western Bulldogs Australian Football League Club, through its Western Bulldogs Community Foundation (WBCF), has invested with community partners in the Sons of the West (SOTW) Program, a 10-week program targeted at hard-to-reach men aged ≥18 years living in Victoria’s West. The SOTW Program aims to increase its participants’ physical activity, social connectedness and overall health. Evaluations by the WBCF revealed the SOTW is positively contributing to improved healthier lifestyles and health of participants. Anecdotal reports revealed the SOTW was creating ripples far beyond the Program’s expectations. In 2016–17, the WBCF funded the University of Melbourne to evaluate the SOTW Program ripple effects. An adapted ‘Ripple Effect Mapping’ approach was used, including 13 focus group discussions with 100 SOTW participants. The SOTW Program is improving men’s social connections, health promoting behaviours, health literacy and creating ripple effects including: local community participation; increased volunteerism; enhanced reciprocity; and increased leadership. Community capacity-building frameworks can explain the SOTW Program ripple effects. Professional sporting organisations can provide lifestyle-based health improvement programs and empower men to contribute to building community capacity.
Motivations of the pilgrim to attend the annual pilgrimage of Hajj.
Authors: Yaqub M. J.
Published: August 2019

This chapter demonstrates and explores the motivations of individuals attending the annual pilgrimage of Hajj in the holy cities of Makkah and Medina in Saudi Arabia. The chapter further highlights the development of the country from a commercial aspect as well as the use of modern technology to communicate and educate the pilgrim. Further developments are planned for the holy cities and the scope of this chapter is to highlight whether the motivations of the attendees are changing from pilgrim to tourist.
Culling.
Authors: Laksono N. D. , Setiawati U. , Nur F. , Rahmaningsih M. , Anwar Y. , Rusfiandi H. , Forster B. P. , Sembiring E. H. , Subbarao A. S. , Zahara H.
Published: August 2019

Culling is a quality control procedure and as such is possibly one of the most important procedures to be carried out in the nursery. It ensures that only healthy and uniform nursery palms are maintained and these are likely to give the highest yields after planting in the field. A basic rule when inspecting plants is, 'If in doubt, pull it out!'. Off-type plants may be a result of poor growing conditions or inherent physiological or genetic disorders. Three rounds of culling are carried out during the main nursery period: the first prior to transplanting to the main nursery; the second at six months; and the third coinciding with transfer to the field or at 12 months, whichever comes earlier. This chapter describes guidelines and methods in culling application.
Pre-field genotypic screening and selection.
Authors: Laksono N. D. , Setiawati U. , Nur F. , Rahmaningsih M. , Anwar Y. , Rusfiandi H. , Forster B. P. , Sembiring E. H. , Subbarao A. S. , Zahara H.
Published: August 2019

The advent of DNA screening in oil palm allows plants in the nursery to be screened for specific traits prior to potting-on and field planting, thus saving space and resources in the nursery and maximising field productivity by eliminating undesired genotypes. This has become particularly important in screening for shell type, i.e. in distinguishing Dura, Pisifera and Tenera palms at an early stage. In this chapter, we describe some of the basic features in DNA analysis from leaf sampling in the nursery to DNA extraction in the lab and various DNA analyses that may be performed either in-house or outsourced. The oil palm genome was sequenced in 2013 (Singh et al., 2013) and this has paved the way to develop DNA diagnostics for traits of interest. This is a fast-developing area. The chapter represents an introduction to DNA markers in oil palm and their application in the nursery. It does not provide step-by-step protocols, as this is the subject of another manual in this series (Anwar et al., in preparation).
The threat of the larger grain borer,
Prostephanus truncatus
(Coleoptera: Bostrichidae) and practical control options for the pest.
Authors: Muatinte B. L. , Kavallieratos N. G. , Boukouvala M. C. , García-Lara S. , López-Castillo L. M. , Mvumi B. M.
Published: August 2019

It is about 40 years since
Prostephanus truncatus
, a devastating pest of stored maize and dried cassava, was accidentally introduced into Africa from meso-America. Losses of stored maize at least doubled because of the destructive nature of the pest.
Prostephanus truncatus
management measures generated and recommended then worked at that time. However, the pest remains a serious threat to food security in developing tropical countries as it continues to spread to other geographical areas. This paper reviews the status of scientific knowledge of the pest and practical control options in the context of reductions in synthetic pesticide use; pesticide resistance management; and consumer, worker and environmental safety, and in the process, identifies research and development gaps. We present a scenario of the threat of
P. truncatus
on stored-maize grain and dry cassava chips and discuss, critically analyse the economic feasibility of control methods that have been generated and applied through scientific research. This review reveals a clear paucity of reliable data on economic analysis of most interventions, a critical factor for farmer adoption. A gap is also identified in the uptake of some of the developed technologies; mainly ascribed to affordability issues and a lack of evidence-based economic analysis under the user's circumstances. There is a lack of reliable national postharvest loss data based on the measurement and currently, the most robust loss estimates for sub-Saharan Africa are available on the African Postharvest Loss Information System (APHLIS) online platform. Any emerging
P. truncatus
control methods should be evaluated for efficacy and cost-effectiveness under realistic circumstances together with the target end-users of the methods to assess appropriateness.
Grain growth during reheating of HSLA steels with a narrow segregation separation
Authors: Wang Fei , Strangwood Martin , Davis Claire
Published: August 2019

Reheat treatments for two HSLA steels, a forged Al-Nb-containing steel (Steel-1) and an as-rolled Nb-containing steel (Steel-2), were carried out for one to three hours at temperatures between 1090 and 1250°C which were selected by the precipitates’ dissolution temperatures predicted by Thermo-Calc and DICTRA. Steel-1 contains continuous segregation bands with segregation spacing of 65 ± 10 µm, whereas Steel-2 contains discontinuous segregation bands with spacing of 35 ± 10 µm. Uniform grain size distributions occurred in Steel-1 for all reheat temperatures whereas abnormally large grains were observed in Steel-2 when reheating at 1090°C. A mechanism for grain size development in materials with continuous and discontinuous segregation bands based on austenite nucleation and growth and precipitate pinning in the segregation band is proposed.
Rapid and easy method for in vitro determination of transcription factor binding core motifs
Authors: Jinno Kyosuke , Kimura Wakana , Komatsu Mina , Miura Maiko , Sakaoka Satomi , Nomoto Mika , Tada Yasuomi , Morikami Atsushi , Tsukagoshi Hironaka
Published: August 2019

We introduce a rapid method for easily elucidating transcription factor (TF) cis-elements by adopting a highly efficient in vitro protein synthesis method and identifying protein-DNA interactions using PCR. We determined two cis-elements for plant TFs using this method, and the results confirmed our method as an easy and time-saving alternative for elucidating TF cis-elements using common laboratory procedures.
Coronin 1A depletion restores the nuclear stability and viability of Aip1/Wdr1-deficient neutrophils
Authors: Bowes Charnese , Redd Michael , Yousfi Malika , Tauzin Muriel , Murayama Emi , Herbomel Philippe
Published: August 2019

Actin dynamics is central for cells, and especially for the fast-moving leukocytes. The severing of actin filaments is mainly achieved by cofilin, assisted by Aip1/Wdr1 and coronins. We found that in Wdr1-deficient zebrafish embryos, neutrophils display F-actin cytoplasmic aggregates and a complete spatial uncoupling of phospho-myosin from F-actin. They then undergo an unprecedented gradual disorganization of their nucleus followed by eruptive cell death. Their cofilin is mostly unphosphorylated and associated with F-actin, thus likely outcompeting myosin for F-actin binding. Myosin inhibition reproduces in WT embryos the nuclear instability and eruptive death of neutrophils seen in Wdr1-deficient embryos. Strikingly, depletion of the main coronin of leukocytes, coronin 1A, fully restores the cortical location of F-actin, nuclear integrity, viability, and mobility of Wdr1-deficient neutrophils in vivo. Our study points to an essential role of actomyosin contractility in maintaining the integrity of the nucleus of neutrophils and a new twist in the interplay of cofilin, Wdr1, and coronin in regulating F-actin dynamics.
Measurement of intracellular ion activity in skeletal muscle fibers: Four microelectrodes or no deal
Authors: Allard Bruno
Published: August 2019

Allard reviews a new powerful method allowing measurement of intracellular ion activity in isolated skeletal muscle fibers.
Capillary rheometer for magnetic fluids
Authors: Allebrandi S M , van Ostayen R A J , Lampaert S G E
Published: August 2019

Magnetic fluids have been around since the 1940s. They come in different forms: magnetorheological fluids (MR fluids) and ferrofluids. MR fluids characterise themselves by having a large change in viscosity under the influence of a magnetic field. Ferrofluids have a significantly smaller change in viscosity, however ferrofluids are colloidal suspensions. After their discovery many applications followed, such as the MR clutch, magnetic damper and bearing applications, in which the fluids are subjected to ultra high shear rates. Little information is available on what happens to the rheological properties under these conditions. In general, the characteristics determined at lower shear rates are extrapolated and used to design new devices. Magnetic fluids have potential in the high tech and high precision applications and their properties need to be known in particular at shear rates around 106 s−1. Commercially available magnetorheometers are not able to measure these fluids at ultra high shear rates and are limited to 105 s−1. Therefore a new magnetorheometer is required to measure ultra high shear rates. In this paper the physical limitations of current measuring principles are analysed and a concept is designed for ultra high shear rate rheometry in combination with a magnetic field. A prototype is fabricated and the techniques used are described. The prototype is tested and compared to a state of the art commercial rheometer. The test results of the prototype rheometer for magnetic fluids show its capability to measure fluids to a range of 104 s−1–

s−1 and the capability to measure the magnetorheological effect of magnetic fluids.
Physics potential of an experiment using LHC neutrinos
Authors: Beni N , Brucoli M , Buontempo S , Cafaro V , Dallavalle G M , Danzeca S , Lellis G De , Crescenzo A Di , Giordano V , Guandalini C , Lazic D , Meo S Lo , Navarria F L , Szillasi Z
Published: August 2019

Neutrinos are abundantly produced in the LHC. Flavour composition and energy reach of the neutrino flux from proton–proton collisions depend on the pseudorapidity η. At large η, energies can exceed the TeV, with a sizeable contribution of the τ flavour. A dedicated detector could intercept this intense neutrino flux in the forward direction, and measure the interaction cross section on nucleons in the unexplored energy range from a few hundred GeV to a few TeV. The high energies of neutrinos result in a larger νN interaction cross section, and the detector size can be relatively small. Machine backgrounds vary rapidly while moving along and away from the beam line. Four locations were considered as hosts for a neutrino detector: the CMS quadrupole region (25 m from CMS Interaction Point (IP)), UJ53 and UJ57 (90 and 120 m from CMS IP), RR53 and RR57 (240 m from CMS IP), TI18 (480 m from ATLAS IP). The potential sites are studied on the basis of (a) expectations for neutrino interaction rates, flavour composition and energy spectrum, (b) predicted backgrounds and in situ measurements, performed with a nuclear emulsion detector and radiation monitors. TI18 emerges as the most favourable location. Already with 150 fb−1 expected in LHC Run3, a small detector in TI18 could measure, for the first time and with good precision, the high-energy νN cross section for all neutrino flavours.
Optical absorption of composition-tunable InGaAs nanowire arrays
Authors: Treu J , Xu X , Ott K , Saller K , Abstreiter G , Finley J J , Koblmüller G
Published: August 2019

InGaAs nanowire (NW) arrays have emerged as important active materials in future photovoltaic and photodetector applications, due to their excellent electronic properties and tunable band gap. Here, we report a systematic investigation of the optical absorption characteristics of composition-tunable vertical InGaAs NW arrays. Using finite-difference time-domain simulations we first study the effect of variable composition (Ga-molar fraction) and NW array geometry (NW diameter, period, fill factor) on the optical generation rate. NWs with typical diameters in the range of ∼100–250 nm lead to generation rates higher than the equivalent bulk case for moderate fill factors (NW period of ∼0.3–0.8 μm), while slightly smaller fill factors and increased diameters are required to maintain high generation rates at increased Ga-molar fraction. The optical absorption was further measured using spectrally resolved ultraviolet–visible-near-infrared (UV–vis-NIR) spectroscopy on NW arrays transferred to transparent substrates. Interestingly, large variations in Ga-molar fraction (0 < x(Ga) < 0.5) have a negligible influence, while minute changes in NW diameter of less than ±20 nm affect the absorption spectra very strongly, leading to pronounced shifts in the peak absorption energies by more than ∼700 meV. These results clearly highlight the much larger sensitivity of the optical absorption behavior to geometric parameters rather than to variations in the electronic band gap of the underlying NW array.
Shielding current in a copper-plated multifilament coated conductor wound into a single pancake coil and exposed to a normal magnetic field
Authors: Amemiya Naoyuki , Sogabe Yusuke , Yamano Satoshi , Sakamoto Hisaki
Published: August 2019

A single pancake coil wound with a copper-plated multifilament coated conductor, with four filaments, was put in a cusp magnetic field, and the magnetic field was measured near the coil at 30 K. A similar experiment was performed by using another reference single pancake coil wound with a monofilament coated conductor. Numerical electromagnetic field analyses of these coils were carried out, and the calculated shielding current-induced fields (SCIFs) were compared with the measured ones in both coils. The temporal behaviour of the calculated SCIF in the coil wound with the four-filament coated conductor was also compared with a series of exponential components, in which a coupling time constant extrapolated from short sample experiments was used as the time constant of the primary component. Current distributions in the coated conductors wound into the pancake coils were visualised. In particular, the temporal behaviours of the current distributions in the four-filament coated conductor and their influence on the SCIF were discussed.
Theoretical analyses of stock correlations affected by subprime crisis and total assets: Network properties and corresponding physical mechanisms*
Authors: Zhu Shi-Zhao , Wang Yu-Qing , Wang Bing-Hong
Published: August 2019

In the field of statistical mechanics and system science, it is acknowledged that the financial crisis has a profound influence on stock market. However, the influence of total asset of enterprise on stock quote was not considered in the previous studies. In this work, a modified cross-correlation matrix that focuses on the influence of total asset on stock quote is introduced into the analysis of the stocks collected from Asian and American stock markets, which is different from the previous studies. The key results are obtained as follows. Firstly, stock is more greatly correlated with big asset than with small asset. Secondly, the higher the correlation coefficient among stocks, the larger the eigenvector is. Thirdly, in different periods, like the pre-subprime crisis period and the peak of subprime crisis period, Asian stock quotes show that the component of the third eigenvector of the cross-correlation matrix decreases with the asset of the enterprise decreasing. Fourthly, by simulating the threshold network, the small network constructed by 10 stocks with large assets can show the large network state constructed by 30 stocks. In this research we intend to fully explain the physical mechanism for understanding the historical correlation between stocks and provide risk control strategies in the future.
Pressure-induced new chemistry*
Authors: Lin Jianyan , Du Xin , Yang Guochun
Published: August 2019

It has long been recognized that the valence electrons of an atom dominate the chemical properties, while the inner-shell electrons or outer empty orbital do not participate in chemical reactions. Pressure, as a fundamental thermodynamic variable, plays an important role in the preparation of new materials. More recently, pressure stabilized a series of unconventional stoichiometric compounds with new oxidation states, in which the inner-shell electrons or outer empty orbital become chemically active. Here, we mainly focus on the recent advances in high-pressure new chemistry including novel chemical bonding and new oxidation state, identified by first-principles swarm intelligence structural search calculations. The aim of this review is to provide an up-to-date research progress on the chemical bonding with inner-shell electrons or outer empty orbital, abnormal interatomic charge transfer, hypervalent compounds, and chemical reactivity of noble gases. Personal outlook on the challenge and opportunity in this field are proposed in the conclusion.
Topological phases of a non-Hermitian coupled SSH ladder*
Authors: Liu J S , Han Y Z , Liu C S
Published: August 2019

We study topological phases of a non-Hermitian coupled Su–Schrieffer–Heeger (SSH) ladder. The model originates from the brick-wall lattices in the two-row limit. The Hamiltonian can be brought into block off-diagonal form and the winding number can be defined with the determine of the block off-diagonal matrix. We find the determine of the off-diagonal matrix has nothing to do with the interleg hopping of the ladder. So the topological phases of the model are the same as those of the chains. Further numerical simulations verify the analysis.
Experimental investigation of the fluctuations in nonchaotic scattering in microwave billiards*
Authors: Zhang Runzu , Zhang Weihua , Dietz Barbara , Chai Guozhi , Huang Liang
Published: August 2019

We report on the experimental investigation of the properties of the eigenvalues and wavefunctions and the fluctuation properties of the scattering matrix of closed and open billiards, respectively, of which the classical dynamics undergoes a transition from integrable via almost integrable to fully chaotic. To realize such a system, we chose a billiard with a 60° sector shape of which the classical dynamics is integrable, and introduced circular scatterers of varying number, size, and position. The spectral properties of generic quantum systems of which the classical counterpart is either integrable or chaotic are universal and well understood. If, however, the classical dynamics is pseudo-integrable or almost-integrable, they exhibit a non-universal intermediate statistics, for which analytical results are known only in a few cases, e.g., if it corresponds to semi-Poisson statistics. Since the latter is, above all, clearly distinguishable from those of integrable and chaotic systems, our aim was to design a billiard with these features which indeed is achievable by adding just one scatterer of appropriate size and position to the sector billiard. We demonstrated that, while the spectral properties of almost-integrable billiards are sensitive to the classical dynamics, this is not the case for the distribution of the wavefunction components, which was analyzed in terms of the strength distribution, and the fluctuation properties of the scattering matrix which coincide with those of typical, fully chaotic systems.
Cascaded plasmonic nanorod antenna for large broadband local electric field enhancement*
Authors: Zhang Dou , Yang Zhong-Jian , He Jun
Published: August 2019

We propose a cascaded plasmonic nanorod antenna for large broadband electric near-field enhancement. The structure has one big gold nanorod on each side of a small two-wire antenna which consists of two small gold nanorods. For each small nanorod, the enhanced and broadened optical response can be obtained due to the efficient energy transfer from its adjacent big nanorod through strong plasmonic near-field coupling. Thus, the electric field intensity of the cascaded antenna is significantly larger and broader than that of the individual small two-wire antenna. The resonant position, field intensity enhancement, and spectral width of the cascaded antenna are highly tunable by varying the geometry of the system. The quantum efficiency of the cascaded antenna is also greatly enhanced compared with that of the small antenna. Our results are important for the applications in field-enhanced spectroscopy.
Statistical Analysis in System Evaluation of ilearning Media With Mccall’s Quality Model
Authors: Sudaryono  , Roihan Ahmad , Rafika Ageng Setiani
Published: August 2019

Evaluation of the system regarding user participation and satisfaction will affect the success of the system implementation, where user participation can improve information system performance. In practice of evaluation, there must be a survey through statistical analysis of the system so that in its application can be known system deficiencies and user satisfaction in using information system services. The application of the business intelligence concept in this iLearning class is very felt in the decision support process and it can be felt directly by students without any further guidance from educators. This research aims to determine the results of the evaluation of the system implementation that has been running in order to know the validity and reliability test. The method used in this research is the statistical analysis approach with McCall’s quality model. The data retrieval process by distributing questionnaires to the class which is used as a sampling of the total population of classes in SMK Al Fattah. This research aims to find out empirical data about the implementation of the iLearning Media system at the vocational high school level with the approach of McCall’s quality model.
Digitalized University – Value Creation in the Age 4.0
Authors: Soegoto E S , Luckyardi S
Published: August 2019

The research was purposed at analyzing the influence of digitalization toward value creation in University and to what extent it can be enhanced the competitiveness of university in the age 4.0. A case study was performed in a private university in Bandung, which has shifted from the conventional system to digital system in almost all activities of learning and administration. The methodology used was quantitative method by implementing validity test, reliability tests, and simple linear regression to investigate the influence of digitalized university and its value creation. A series of questionnaires were distributed to 261 respondents and was scored by Likert Scale. Additionally, data retrieval from related division, interview, and literature review were also performed. to complete data. The finding of the result indicated that digitalization contribute to the value creation in the age 4.0. The digitalization in university showed significant influence in all variables measured, which are Teaching learning (TL), Research (R), Management Process (MP), Management of Institutional Information (MII), Organization of IT (OI), IT training and culture (ITC). The findings contribute in providing recommendation for building digitalized university and shifting university management from conventional to digitalized university.
Digital Video Based Rampak Kendang Learning Media for Deaf Students
Authors: Pratiwi AS , Lestari AT , Hendrawan B , Nugraha MF , Nurfitriani M. , Nurkamilah M , Mujiarto  , Musfiroh Tadkiroatun , Nugraha F , Ridwan H Wan
Published: August 2019

This study aims to develop an effective digital video-based learning media for rampak kendang learning in Special Schools (SLB). This digital video learning media developed contains the learning process of Rampak Kendang using sign language. This learning media is validated by experts and tested in the field. This research is R & D research through the stages of needs analysis, digital video media design, product validation, field trials, and testing of media effectiveness. The procedure of research development and digital video media development for learning rampak kendang through several stages. The first stage is needs analysis in the form of observations, interviews, and questionnaires. The second is making video designs, making storyboards, making flowchart views, and collecting materials. The third is product validation that consist of media experts validation, material experts, and users. In media expert validation, it got a score of 38 with good criteria on the aspect of appearance, while in the programming aspect got a score of 32 with sufficient criteria. Validation of material experts and users (teachers), consist of the format aspect that got a score of 24, the content aspect of the score 23, the language aspect score of 37, and it got a score 55 for learning aspect, all aspects were in good criteria.
Digital Library Development and Evaluation to Improve Students’ Digital Literacy
Authors: Praseptiawan Mugi , Siswanto Puji , Afrida Tjut
Published: August 2019

The existence of digital libraries support education in the evolution of generation 4.0 education, conceptual design of digital libraries has become important as a reference in the development of digital libraries. Many studies deals with digital libraries, however, they have not accommodated the needs and behavior of different users, this research develops digital libraries by adding an initial interface to digital libraries and developing sharing digital content in learning. Evaluation of system development is carried out by involving two experimental classes and a control class. The results of the qualitative evaluation also showed that 80.9% gave positive comments which showed that the category was very suitable to be used for the learning process. From the results of the evaluation of the experimental class control class showed that the experimental class was better than the control class, this shows that in the experimental class the students’ information technology literacy skills were better than the control class.
Analysis of Students’ Mathematical Imagination Ability in Solving Problems
Authors: Nurcahyono N A , Suryadi D , Prabawanto S
Published: August 2019

The purpose of this study is to determine the ability of mathematical imagination to solve mathematical problems. Mathematical problems in this study use fractional content. This research is descriptive qualitative research. In this study subjects included 3 junior high school students, where the subject was deliberately taken by sample technique, i.e. considering the ability to communicate and an indication of the ability to bring up mathematical imagination. Data collection is done by observation, mathematical imagination test, and interview. Data analysis techniques include data reduction, data performance, and drawing conclusion. Conclusion drawing used triangulation method. The outcome of this study is that the ideas raised by the students in solving problems are not yet another form of content, but rather in the form of technical calculations. Students do not understand the concept of set in solving fractional content problems. Thus, students are only able to bring sensory imagery.
A Study of Muhammadiyah College Management to Be International Class (Case Study: Muhammadiyah University of Yogyakarta)
Authors: Siswosuharjo Partono , Listiyoko Langgeng
Published: August 2019

A large number of Muhammadiyah Higher School that grows rapidly then potensially create the quality problem, especially in educational output. Beside, a slowly response of quality development compared with the amount of school. Therefore, it’s hard to be compete with the other higher school in Indonesia. The goal of this research is to analyze management, implementation strategic, the problems, and the improvement needed by descriptive qualitative approach. A documentation study, observation, and interview was done regarding to data collection. The conclusion is they has to be focused on manpower managing, tools and output quality, and doing management functionalities that is improves performance.
Developing Statistical Reasoning Ability of Industrial Engineering Students Through Experiential Learning
Authors: Fardillah Frena , Sutaagra Ossa , Supriani Yani , Farlina Ehda , Priatna Nanang
Published: August 2019

Education is one way to develop thinking skills. The aim of implementing education is to produce quality human resources. So that the development of science and technology can develop in a better direction as technology advances. Quality learning will encourage students to have better cognitive abilities. Experiential learning implementation is a learning process that prioritizes experience during the learning process. The purpose of this study was to determine the effects of experiential learning on students’ statistical reasoning abilities. The design of this study was one sample group with purposive sampling technique. The subjects of this study were students who contracted industrial statistics courses. Statistical test results prove that experiential learning provides a positive contribution to students’ statistical reasoning abilities.
Implementation of the Science-based Learning Model MaHMud (Fun, Warm and Easy) in PAUD SIAGA of Cimahi City
Authors: Zahro I F , Sumirat F , Rohmalina
Published: August 2019

Science education teaching at early age is highly essential, a number of early education communities lately have applied various methods of teaching science. The MaHMud Model (Fun, Warm and Easy) is a new way of learning in early childhood education level. The purpose of this paper is to explain and describe the MaHMud learning model starting from the Daily Lesson Plan (RPPH), the development of teaching materials, and teaching strategies that the teachers use during the teaching practice and during the evaluation. The research method used in this paper is descriptive method which is used to describe the application of Mahmud learning model in PAUD Siaga of Cimahi City. The results of the study show that the teachers made the lesson plans based on the 2013 PAUD Curriculum. MaHMud Model on science learning is being implemented through a scientific approach. The theme was being adjusted by using plants as the theme, the method used in the study is the demonstration method. When they were learning by planting a certain vegetables, they used hydroponic techniques. Science learning with the MaHMud Model is meant to foster children’s critical thinking skills and help children understand the world around them.
Curriculum Development in the Field of Law: Facing the New Era of Industrial Revolution 4.0
Authors: Endarto Budi , Alam Arief Sahrul , Abadi Suwarno
Published: August 2019

New paradigm about lawyer has shifted legal profession education in this millennial era. Thus scholars need to orientate legal profession education in order to graduates of law school in Indonesia not only to study law substance but also the process law implement digitally to the change in technology industry 4.0 This article starts at understanding of law science characteristics, the evolution of teaching method, curriculum designing in law school in Indonesia, new paradigm in law practice technology in digital era. The digital era means the transition of traditional industries towards economy era which based on information computerized. Technology revolution which is initialled with internet development and working-ethos computer evolution, thus this revolution reinforced all aspects into digital era. Furthermore, it affects to legal profession which must be line with development flow in digital era. Legal profession is legal praxis community which emerged from law school, for that issue education process of legal profession must be oriented to the learning process.
The Development of Media Application Physics Learning Based Smartphone and Its Effects on Students’ Learning Outcomes on Kinematics Materials
Authors: Maryam E , Fahrudin A , Susanto
Published: August 2019

The ability of teachers in managing learning environments and utilizing cellular technology in learning will affect students’ interest in learning. The purpose of this research is to develop mobile learning media. This research uses two methods. First, it used a development research method with model Analysis, Design, Development, Implementation, Evaluation (ADDIE) and quasi-experimental design. This application is validated by experts for technical aspects and the students were also as an application user test. The results showed that both technically given a very good response to a mobile learning application, it means that can be used to increase student’ interest in learning. Finally, the effect of media application physics learning based smartphone to student’ learning outcomes can help in increasing the students’ learning outcomes.