Lifshitz holographic superconductor in Horava-Lifshitz gravity

We study the holographic phase transition of superconductor dual to a Lifshitz black brane probed by an anisotropic scalar field in the probe limit in Ho\u{r}ava-Lifshitz gravity. With the use of numerical and analytical method, we investigate how the critical temperature of the condensation is affected by the Lifshitz exponent $z$, $\alpha-$correction term in the action as well as the dimensions of the gravity. We also numerically explore the condensation of the dual operator and optical conductivity of the holographic system. Various interesting properties of the holographic condensation affected by the parameters of model are discussed

The Effects of Audio Comedy Test on Listening Comprehension Skills of EFL Learners

This study aims to investigate the effects of audio comedy on English listening comprehension test results of English as a Foreign Language (EFL) learners. The English listening test comprises four sections; each section has a seven-minute comedy audio mode and 13 questions, and participants listen to the four sections successively. This study was conducted with 117 sophomore, junior and senior students at Sebelas Maret University in Indonesia. Two-way Analysis of Variance (ANOVA) was adopted to distinguish between male and female students on the four successive test sections measuring English listening comprehension skills. The findings are: 1. Successive practice tests will stimulate English listening skills; and 2. Successive practice tests will improve students’ English listening skills. The comedy audio mode creates a low-stress English listening atmosphere and reduces the learner’s anxiety

Tri-Band Dual-Polarized Shared-Aperture Antenna Arrays with Wide-Angle Scanning and Low Profile for 5G Base Stations

A novel tri-band shared aperture antenna (TSAA) array is proposed in this paper to meet the requirements of modern base station antennas for multi-band antenna fusion and independent control. Different antenna types are utilized for each operating band, including 3D-printed dielectric resonator antennas (DRAs) for the middle bands (MB, 3.4 to 3.6 GHz) and high bands (HB, 5.4 to 5.6 GHz), and dipole antennas forthe low band (LB, 1.85 to 2.15 GHz). The TSAA comprises a 1x4 dipole antenna array for LB, a 2x7 MB antenna array located at the edges of the aperture, and a 2x12 HB antenna array at the aperture center. The LB dipole antenna array is positioned above the MB and HB antenna arrays, providing wideband electromagnetic transparency for both MB and HB simultaneously. By exploiting the high dielectric permittivity ofthe DRAs, the overall array profile is miniaturized to 0.13 0 (0 is the free-space wavelength at central frequency of LB), while the array element spacing meets scanning conditions for suppressing grating lobes and achieving wide-angle control of each frequency band. Additionally, the adoption of symmetric -shaped stripline coupled feeding technology in the LB antenna effectively improves the problem of tilted radiation patterns of the HB antenna

High density NV sensing surface created via He^(+) ion implantation of (12)^C diamond

We present a promising method for creating high-density ensembles of nitrogen-vacancy centers with narrow spin-resonances for high-sensitivity magnetic imaging. Practically, narrow spin-resonance linewidths substantially reduce the optical and RF power requirements for ensemble-based sensing. The method combines isotope purified diamond growth, in situ nitrogen doping, and helium ion implantation to realize a 100 nm-thick sensing surface. The obtained 10^(17) cm^(-3) nitrogen-vacancy density is only a factor of 10 less than the highest densities reported to date, with an observed spin resonance linewidth over 10 times more narrow. The 200 kHz linewidth is most likely limited by dipolar broadening indicating even further reduction of the linewidth is desirable and possible.Comment: 5 pages including references. 3 figure

Genome-wide gene responses in a transgenic rice line carrying the maize resistance gene Rxo1 to the rice bacterial streak pathogen, Xanthomonas oryzae pv. oryzicola

Abstract Background Non-host resistance in rice to its bacterial pathogen, Xanthomonas oryzae pv. oryzicola (Xoc), mediated by a maize NBS-LRR type R gene, Rxo1 shows a typical hypersensitive reaction (HR) phenotype, but the molecular mechanism(s) underlying this type of non-host resistance remain largely unknown. Results A microarray experiment was performed to reveal the molecular mechanisms underlying HR of rice to Xoc mediated by Rxo1 using a pair of transgenic and non-transgenic rice lines. Our results indicated that Rxo1 appeared to function in the very early step of the interaction between rice and Xoc, and could specifically activate large numbers of genes involved in signaling pathways leading to HR and some basal defensive pathways such as SA and ET pathways. In the former case, Rxo1 appeared to differ from the typical host R genes in that it could lead to HR without activating NDR1. In the latter cases, Rxo1 was able to induce a unique group of WRKY TF genes and a large set of genes encoding PPR and RRM proteins that share the same G-box in their promoter regions with possible functions in post-transcriptional regulation. Conclusions In conclusion, Rxo1, like most host R genes, was able to trigger HR against Xoc in the heterologous rice plants by activating multiple defensive pathways related to HR, providing useful information on the evolution of plant resistance genes. Maize non-host resistance gene Rxo1 could trigger the pathogen-specific HR in heterologous rice, and ultimately leading to a localized programmed cell death which exhibits the characteristics consistent with those mediated by host resistance genes, but a number of genes encoding pentatricopeptide repeat and RNA recognition motif protein were found specifically up-regulated in the Rxo1 mediated disease resistance. These results add to our understanding the evolution of plant resistance genes.</p

Exploration and practice of animal physiology teaching mode for top class

动物生理学是动物医学、动物科学专业的重要基础理论课程。针对本校拔尖班学生培养计划和学习特点，本课程在教学中注重情境化教学，把最新研究进展及时整合到相应教学模块中，适当提高过程性评价比例，探索出适合拔尖班学生的授课模式，改善教学效果。Animal physiology is an important basic theoretical course for the specialty of animal medicine and animal science. According to the training programs and learning characteristics of top class students in our college, this course focused on situational teaching, integrated the latest progress manner into teaching model timely, and properly increased the process evaluation proportion in order to explore suitable teaching mode for top-class students, and improve teaching effectiveness

Feasibility Analysis of Improving the Accessibility and Security of Nano-Labs via Kinect

Abstract. This paper aims to probe into the feasibility of using Kinect to improve the accessibility and security of Nano labs, and characteristic analysis of the integrated system, i.e. Kinect, laptop, and IP Power, has been therefore carried out to interpret the feasibility in question. The finding is that the integrated system can improve the interaction between participants and labs, and the aforementioned interaction includes accessibility and security of both teachers and learners while using Nano labs. It is expected that following its future development, the use of Kinect on automatic switches of electronic equipment and devices, and the condition for commercializing the use on security maintenance and safety warnings of labs will mature in the future

A Fatty Acid Glycoside from a Marine-Derived Fungus Isolated from Mangrove Plant Scyphiphora hydrophyllacea

To study the antimicrobial components from the endophytic fungus A1 of mangrove plant Scyphiphora hydrophyllacea Gaertn. F., a new fatty acid glucoside was isolated by column chromatography from the broth of A1, and its structure was identified as R-3-hydroxyundecanoic acid methylester-3-O-α-l-rhamnopyranoside (1) by spectroscopic methods including 1D and 2D NMR (HMQC, 1H-1H COSY and HMBC) and chemical methods. Antimicrobial assay showed compound 1 possessed modest inhibitory effect on Saphylococcus aureus and methicillin-resistant S. aureus (MRSA) using the filter paper disc agar diffusion method

Forecasting the Short-Term Passenger Flow on High-Speed Railway with Neural Networks

Short-term passenger flow forecasting is an important component of transportation systems. The forecasting result can be applied to support transportation system operation and management such as operation planning and revenue management. In this paper, a divide-and-conquer method based on neural network and origin-destination (OD) matrix estimation is developed to forecast the short-term passenger flow in high-speed railway system. There are three steps in the forecasting method. Firstly, the numbers of passengers who arrive at each station or depart from each station are obtained from historical passenger flow data, which are OD matrices in this paper. Secondly, short-term passenger flow forecasting of the numbers of passengers who arrive at each station or depart from each station based on neural network is realized. At last, the OD matrices in short-term time are obtained with an OD matrix estimation method. The experimental results indicate that the proposed divide-and-conquer method performs well in forecasting the short-term passenger flow on high-speed railway