A canonical form of arithmetic and conditional expressions

This paper contributes to code clone detection by providing an algorithm that calculates canonical forms of arithmetic and conditional expressions. An experimental evaluation shows the relevance of such expressions in real code. The proposed normalization can be used in addition to dataflow normalizations

Creating topological interfaces and detecting chiral edge modes in a 2D optical lattice

We propose and analyze a general scheme to create chiral topological edge modes within the bulk of two-dimensional engineered quantum systems. Our method is based on the implementation of topological interfaces, designed within the bulk of the system, where topologically-protected edge modes localize and freely propagate in a unidirectional manner. This scheme is illustrated through an optical-lattice realization of the Haldane model for cold atoms, where an additional spatially-varying lattice potential induces distinct topological phases in separated regions of space. We present two realistic experimental configurations, which lead to linear and radial-symmetric topological interfaces, which both allows one to significantly reduce the effects of external confinement on topological edge properties. Furthermore, the versatility of our method opens the possibility of tuning the position, the localization length and the chirality of the edge modes, through simple adjustments of the lattice potentials. In order to demonstrate the unique detectability offered by engineered interfaces, we numerically investigate the time-evolution of wave packets, indicating how topological transport unambiguously manifests itself within the lattice. Finally, we analyze the effects of disorder on the dynamics of chiral and non-chiral states present in the system. Interestingly, engineered disorder is shown to provide a powerful tool for the detection of topological edge modes in cold-atom setups.Comment: 18 pages, 21 figure

Analysis of Influence of Heat Transfer Conditions on the Upper Cover to Heat Transfer in Thermosyphon

Numerical analysis of thermal conditions of a two-phase closed thermosyphon using the software package ANSYS FLUENT has been carried out. Temperature distributions at various heat transfer conditions on upper cover and different heat flow on bottom cover of thermosyphon have been obtained

Методика оценки деятельности персонала предприятия на основе системы сбалансированных показателей

This article is about the mothods to Measure Employee Performance with KPI and balanced scorecard (BSC. It is consider the advantages and disadvantages of this system. Thus, a company gets a management tool linking strategy and daily operations

A Web application for creating and sharing visual bibliographies

The amount of information provided by peer-reviewed scientific literature citation indexes such as Scopus, Web of Science (WOS), CrossRef and OpenCitations is huge: it offers to the users a lot of metadata about publications, such as the list of papers written by a specific author, the editorial and content details of a paper, the list of references and citations. But, for a researcher could be interesting also to: extract in real-time these data in order to create bibliographies, for example, starting with a small set of significant papers or a restricted number of authors, and progressively enriching them by exploring cited/citing references; dispose of a graphical and aggregate representation for them; be able to easily share them with other interested researchers. With these main intents, we modelled and realized VisualBib, a Web application prototype, which enables the user to select sets of papers and/or authors in order to create customized bibliographies, and in real-time visualize them, aggregating data from different sources, in a comprehensive, holistic graphical view. The bibliographies are displayed using time-based visualizations, called narrative views, which contain explicit representations of the authorship and citing relations. These views may help users to: describe a research area; disseminate the research on a specific topic through the sharing of personal points of view; show in a fresh look the entire production of a researcher, or research groups, in order present or evaluate it

A Novel Gaussian Extrapolation Approach for 2D Gel Electrophoresis Saturated Protein Spots

Analysis of images obtained from two-dimensional gel electrophoresis (2D-GE) is a topic of utmost importance in bioinformatics research, since commercial and academic software available currently has proven to be neither completely effective nor fully automatic, often requiring manual revision and refinement of computer generated matches. In this work, we present an effective technique for the detection and the reconstruction of over-saturated protein spots. Firstly, the algorithm reveals overexposed areas, where spots may be truncated, and plateau regions caused by smeared and overlapping spots. Next, it reconstructs the correct distribution of pixel values in these overexposed areas and plateau regions, using a two-dimensional least-squares fitting based on a generalized Gaussian distribution. Pixel correction in saturated and smeared spots allows more accurate quantification, providing more reliable image analysis results. The method is validated for processing highly exposed 2D-GE images, comparing reconstructed spots with the corresponding non-saturated image, demonstrating that the algorithm enables correct spot quantificatio

Specialized 16SrX phytoplasmas induce diverse morphological and physiological changes in their respective fruit crops

The host-pathogen combinations-Malus domestica (apple)/`Candidatus Phytoplasma mali´, Prunus persica (peach)/`Ca. P. prunorum´ and Pyrus communis (pear)/`Ca. P. pyri´ show different courses of diseases although the phytoplasma strains belong to the same 16SrX group. While infected apple trees can survive for decades, peach and pear trees die within weeks to few years. To this date, neither morphological nor physiological differences caused by phytoplasmas have been studied in these host plants. In this study, phytoplasma-induced morphological changes of the vascular system as well as physiological changes of the phloem sap and leaf phytohormones were analysed and compared with non-infected plants. Unlike peach and pear, infected apple trees showed substantial reductions in leaf and vascular area, affecting phloem mass flow. In contrast, in infected pear mass flow and physicochemical characteristics of phloem sap increased. Additionally, an increased callose deposition was detected in pear and peach leaves but not in apple trees in response to phytoplasma infection. The phytohormone levels in pear were not affected by an infection, while in apple and peach trees concentrations of defence- and stress-related phytohormones were increased. Compared with peach and pear trees, data from apple suggest that the long-lasting morphological adaptations in the vascular system, which likely cause reduced sap flow, triggers the ability of apple trees to survive phytoplasma infection. Some phytohormone-mediated defences might support the tolerance

The long-term effectiveness of the New Zealand Green Prescription primary health care intervention on Christchurch residents

The aim of this research was to evaluate the long term effectiveness of the ‘Green Prescription’ programme, (GRx) in encouraging an increase in physical activity levels in previously inactive individuals, between Janurary 1st 2012 – May 1st 2014. Participants were a non-randomised subset of a larger GRx population. Prescribed Christchurch residents were seperated into two groups, the intervention group (discharged-independently active from the programme) and the control group (discharged-not registered-declined programme and discharged-registered-declined programme). These groups were then randomly selected using Microsoft Excel. A retrospective survey was administered and conducted via telephone. Completed surveys were attained from 147 of 498 participants, a total response rate of 29.9% between the two groups. Forty-one percent of participants in the intervention group reported increases in physical activity levels since being prescribed the GRx programme, 23.1% meet the national physical activity guidelines, and 73.6% were classified as non-sedentary. A higher proportion of the control group (46.4%) were classified as sedentary and only 16.1% met the national physical activity guidelines. Participants who had completed a GRx averaged 146.9 ± 173.5 (mean ± SD) physical activity minutes per week in comparision to the control group 83.1 ± 100.3. A decrease in meeting physical activity guidelines was observed the longer participants were off the Green Prescription Programme. Participants in the intervention group also reported higher levels of energy, increased mobility, a decrease in medication, body weight and aches and pains, had fewer breathing difficulties, felt stronger and more mentally relaxed compared to those in the control group