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A facile synthesis of branched silver nanowire structures and its applications in surface-enhanced Raman scattering

We report a facile method of preparing novel branched silver nanowire structures such as Y-shaped, K-shaped and other multi-branched nanowires. These branched nanostructures are synthesized by reducing silver nitrate (AgNO3) in polyethylene glycol (PEG) with polyvinglpyrrolidone (PVP) as capping agent. Statistical data indicate that for the "y" typed branched nanowire, the branches grow out from t

Calorimetric investigations of the pollination biology of the thermogenic inflorescences of the dragon lily (Dracunculus vulgaris) and its pollinator (Protaetia cretica) on Crete

This paper concerns thermometric and direct and indirect investigations of the heat produced by the thermogenic dragon lily (Dracunculus vulgaris) and its main pollinating beetle Protaetia (formerly named Potosia) cretica. The experiments were performed on scented and scentless populations at Panormo, Therisos and Lassithi on the North coast of Crete in the springs of 2007 and 2008. D. vulgaris in

Search for TeV-scale gravity signatures in final states with leptons and jets with the ATLAS detector at root s=7 TeV

The production of events with multiple high transverse momentum particles including charged leptons and jets is measured, using 1.04 fb(-1) of proton-proton collision data recorded by the ATLAS detector during the first half of 2011 at root s = 7 TeV. No excess beyond Standard Model expectations is observed, and upper limits on the fiducial cross sections for non-Standard Model production of these

Vigilance and Apprehension: Multiculturalism, Democracy, and the ‘Kurdish Question’ in Turkey

The aim of this paper is to discuss the ‘Kurdish question’ in Turkey within the framework of the current debates on the ‘death of multiculturalism’. Contra what I would call ‘multikulti-sceptics’, I contend that it is too early to compose an epitaph for multiculturalism, both as practice and as ideology, that there is no binary opposition between a form of rights-based multiculturalism on the one

Using Game Theory for Distributed Control Engineering

The purpose of this paper is to show how ideas from game theory and economics may play an important role for decentralized controller design in complex engineering systems. The focus is on coordination through prices and iterative price adjustments using a gradient method. We give a quantitative bound on adjustment rates that is sufficient to guarantee global convergence towards a Nash equilibrium

Fasting Versus Postload Plasma Glucose Concentration and the Risk for Future Type 2 Diabetes Results from the Botnia Study

OBJECTIVE - The purpose of this study was to assess the efficacy of the postload plasma glucose concentration in predicting future risk of type 2 diabetes, compared with prediction models based oil measurement. of the fasting plasma glucose (FPG) concentration. RESEARCH DESIGN AND METHODS - A total of 2,442 subjects from the Botnia Study, who were free Of type 2 diabetes at baseline, received an o

Demand-Driven Dynamic Spectrum Allocation in Heterogeneous Cellular Networks

In this paper, we address the dynamic spectrum allocation problem in next generation cellular networks under the coordinated dynamic spectrum access (CDSA) model. Firstly, considering spectrum demands of base stations, we formulate spectrum allocation under physical interference models as a nonlinear optimization problem. Then, we propose a demand-driven dynamic spectrum allocation algorithm by tr

Gastrointestinal symptoms among endometriosis patients -- A case-cohort study.

Women with endometriosis often experience gastrointestinal symptoms. Gonadotropin-releasing hormone (GnRH) analogs are used to treat endometriosis; however, some patients develop gastrointestinal dysmotility following this treatment. The aims of the present study were to investigate gastrointestinal symptoms among patients with endometriosis and to examine whether symptoms were associated with men

Construction of laboratories for solar energy research in developing countries

A large number of photovoltaic systems have been installed in developing countries around the world during numerous projects. The goal is often to improve the quality of life in rural areas often lacking electricity. Many of these installations provide important services such as lighting and charging of various devices. However, when the projects are finished, there is a large risk that maintenanc

Comparative Morphology of the Mechanosensory Lateral Line System in a Clade of New Zealand Triplefin Fishes.

The mechanoreceptive lateral line system in fishes detects hydrodynamic stimuli and plays a critical role in many fundamental behaviours, including orientation to water currents and the detection of stationary objects, prey and predators. Interspecific variation in lateral line structure may result from a process of functional adaptation, with the background level of hydrodynamic activity proposed

Magnetocrystalline anisotropy and uniaxiality of MnAs/GaAs(100) films

We present an investigation of the magnetic behavior of epitaxial MnAs films grown on GaAs(100). We address the dependence of the magnetic moment, ferromagnetic transition temperature (T-c), and magnetocrystalline anisotropy constants on epitaxial conditions. From thorough structural and magnetic investigations, our findings indicate a more complex relationship between strain and magnetic properti

Diabetes in Friedreich Ataxia

Diabetes is a common metabolic disorder in patients with Friedreich ataxia. In this Supplement article, we review the clinical data on diabetes in Friedreich ataxia, and the experimental data from rodent and in vitro models of the disease. Increased body adiposity and insulin resistance are frequently present in Friedreich ataxia, but pancreatic cell dysfunction and death are a conditio sine qua n

Quickest path queries on transportation network

This paper considers the problem of finding the cost of a quickest path between two points in the Euclidean plane in the presence of a transportation network. A transportation network consists of a planar network where each road (edge) has an individual speed. A traveler may enter and exit the network at any point on the roads. Along any road the traveler moves with a fixed speed depending on the

Skorpdagglaven Diploicia canescens på frammarsch.

Det senaste årtiondet har varit omvälvande för skorpdagglaven; den har råkat ut för almsjuka, askskottsjuka, transplanteringar och noggrann övervakning. För bara fem år sedan såg det mycket mörkt ut för laven, men nu ser det betydligt ljusare ut då flera nyfynd gjorts för arten i helt nya landskap.