Discriminant loci of ample and spanned line bundles

Let $(X,L,V)$ be a triplet where $X$ is an irreducible smooth complex projective variety, $L$ is an ample and spanned line bundle on $X$ and $V\subseteq H^0(X,L)$ spans $L$. The discriminant locus \Cal D(X,V) \subset |V| is the algebraic subset of singular elements of $|V|$. We study the components of \Cal D(X,V) in connection with the jumping sets of $(X,V)$, generalizing the classical biduality theorem. We also deal with the degree of the discriminant (codegree of $(X,L,V)$) giving some bounds on it and classifying curves and surfaces of codegree 2 and 3. We exclude the possibility for the codegree to be 1. Significant examples are provided

Information transfer in the agricultural sector in Spain

This paper examines the structures of information transfer to the agricultural (production) and agro-alimentary (transformation and commercialization of the products) sector within Spain. A historical perspective is provided to better illustrate the reality and complexity of Spain with regard to the systems of agrarian extension, agricultural research, resources provided by Spain’s central administration, and the use of information by related enterprises. The Service of Agrarian Extension appeared in Spain in the 1950s, and new political-administrative structures (agribusiness associations, cooperatives) were founded when Spain became a democratic nation in the late 1970s, and with the arrival of electronic information, largely in the 1990s. We also describe the tools supporting innovation in the agro-alimentary sector: centers of agrarian research and technological centers. Finally, reference is made to the means of communication dedicated to the agricultural sector. The paper illustrates that the systems of agricultural information in Spain have been largely derived from initiatives of the Public Administration, with few private initiatives

Description of an Electric Vehicle Charge Station Network using Knockoff Filters

In this work we analyse the utilisation of Electric Vehicle (EV) public charging stations in the Netherlands to understand and describe their usage as a function of surrounding premises (such as hospitals, casinos and schools, among others) and population. Also, we analyse the charging performance of such charging stations taking into account temporal values and charging measures taken from transactions registered within the years 2012 and 2016. In order to identify the (potentially) explanatory variables that are meaningful, we will use a False Discovery Rate (FDR) control approach known as Knockoff filters. Results reveal that charging stations located close to Kindergartens, Fuel stations and Car sharing points are more likely to be used more frequently and for the longest time; whereas those users who charge their vehicles either on a weekend or in July between 12 AM and 6 AM are expected to charge their vehicles faster than in other configurations

Green Security Plugin for Pervasive Computing using the HADAS toolkit

Energy is a critical resource in pervasive computing devices. However, information about energy consumption is not directly accessible through software development environments, making it difficult to reuse the knowledge provided by existing energy-consumption experimental studies. To address this limitation, this paper presents a solution to enrich Android Studio with energy consumption information. We have developed a Green Security Plugin that provides energy-aware information to developers that make use of Android Security API. This plugin has been developed taking advantage of the functionalities provided by the HADAS toolkit. HADAS is a repository of energy consuming concerns in which researchers can store the energy measures obtained during their experimental studies and developers can perform a sustainability analysis to make green design/implementation decisions.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

Multivariate regression smoothing through the 'fallling net'.

We consider multivariate regression smoothing through a conditional mean shift procedure. By computing local conditional means iteratively over a set or grid of target points, at each iteration a `net' is formed which gently drifts towards the data cloud, until it settles at the conditional modes of the response distribution. The method is edge-preserving and allows for multi-valued response

Enhancement in Electro-Optic Properties of Dynamic Scattering Systems through Addition of Dichroic Dyes

Electro-optic properties of dynamic scattering in homeotropically aligned pure and dichroic dye-doped nematic liquid crystal samples are examined. The optical properties of the two systems are quantified using transmission properties of scattered and unscattered as a function of amplitude and frequency of an applied voltage. Auto-correlation of the scattered signal at different applied voltages is used to compare the decay times in the two systems. Lastly, the histogram of the scattered signal reveals a wavevector dependent large light scattering event. The dye-doped system shows a significant enhancement of light blocking property in both normal and off-axis light propagation. The characteristics of the system are compared to other scattering technologies. The results suggest that dye-doped system can overcome shortcomings in scattering based devices used for near-eye applications