Uniqueness results for an ODE related to a generalized Ginzburg-Landau model for liquid crystals

We study a singular nonlinear ordinary differential equation on intervals {[}0, R) with R <= +infinity, motivated by the Ginzburg-Landau models in superconductivity and Landau-de Gennes models in liquid crystals. We prove existence and uniqueness of positive solutions under general assumptions on the nonlinearity. Further uniqueness results for sign-changing solutions are obtained for a physically relevant class of nonlinearities. Moreover, we prove a number of fine qualitative properties of the solution that are important for the study of energetic stability

Search for pair-produced resonances decaying to quark pairs in proton-proton collisions at root s=13 TeV

A general search for the pair production of resonances, each decaying to two quarks, is reported. The search is conducted separately for heavier resonances (masses above 400 GeV), where each of the four final-state quarks generates a hadronic jet resulting in a four-jet signature, and for lighter resonances (masses between 80 and 400 GeV), where the pair of quarks from each resonance is collimated and reconstructed as a single jet resulting in a two-jet signature. In addition, a b-tagged selection is applied to target resonances with a bottom quark in the final state. The analysis uses data collected with the CMS detector at the CERN LHC, corresponding to an integrated luminosity of 35.9 fb(-1), from proton-proton collisions at a center-of-mass energy of 13 TeV. The mass spectra are analyzed for the presence of new resonances, and are found to be consistent with standard model expectations. The results are interpreted in the framework of R-parity-violating supersymmetry assuming the pair production of scalar top quarks decaying via the hadronic coupling lambda ''(312) or lambda ''(323) and upper limits on the cross section as a function of the top squark mass are set. These results probe a wider range of masses than previously explored at the LHC, and extend the top squark mass limits in the (t) over tilde -> qq' scenario.Peer reviewe

Leçons élémentaires de musique instrumentale professées a l'Association Polytechnique par A. Hervé.

2 p. ℓ., 154 p., 1 ℓ., illus. (music) 19 cm.At head of t.-p.: "Bibliothèque des Cours de l'Association Polytechnique".Height of text on page 4 is 135 mm

Extracting Information from the Ionic Strength Dependence of Electrophoretic Mobility by Use of the Slope Plot

The effective mobility (μ_ep) is the main parameter characterizing the electrophoretic behavior of a given solute. It is well-known that μ_ep is a decreasing function of the ionic strength for all solutes. Nevertheless, the decrease depends strongly on the nature of the solute (small ions, polyelectrolyte, nanoparticles). Different electrophoretic models from the literature can describe this ionic strength dependence. However, the complexity of the ionic strength dependence with the solute characteristics and the variety of analytical expressions of the different existing models make the phenomenological ionic strength dependence difficult to comprehend. In this work, the ionic strength dependence of the effective mobility was systematically investigated on a set of different solutes [small mono- and multicharged ions, polyelectrolytes, and organic/inorganic (nano)­particles]. The phenomenological decrease of electrophoretic mobility with ionic strength was experimentally described by calculating the relative electrophoretic mobility decrease per ionic strength decade (<i>S</i>) in the range of 0.005–0.1 M ionic strength. Interestingly, the “slope plot” displaying <i>S</i> as a function of the solute electrophoretic mobility at 5 mM ionic strength allows for defining different zones that are characteristic of the solute nature. This new representative approach should greatly help experimentalists to better understand the ionic strength dependence of analyte and may contribute to the characterization of unknown analytes via their ionic strength dependence of electrophoretic mobility

Adele. Selections Vocal score.

At head of title: The New Era Producing Co. Inc., Jos. P. Bickerton Jr., managing director, presents ..

Regulation of the vascular endothelial growth factor (VEGF) receptor Flk-1/KDR by estradiol through VEGF in uterus

International audienc

Hétérogénéité, déterminants et trajectoires du revenu des agriculteurs français

Ce rapport, coordonné par Laurent Piet (INRAE, UMR SMART-LERECO), a été réalisé dans le cadre de l'appel à projets de recherche « Revenu des agriculteurs : mesures, déterminants et instruments d'accompagnement » du Centre d'études et de prospective du Ministère de l'Agriculture et de l'Alimentation.The analysis of farmers' income must take into account its composition (agricultural sources, non-agricultural sources, and public support), its level (per farm, per labour unit, per household), its dispersion (between farmers, between production systems) and its evolution (in the short and long term). The objectives of the Agr'Income project are, first, to review the different definitions of the concept of "farm income" and the indicators and sources usually used to characterize and quantify it, and then to describe as precisely as possible the diversity of French farmers' income. Secondly, it is a question of analyzing the technical and economic determinants that govern the construction of the income generated by farms, and the trade-offs between immediate remuneration of work and deferred remuneration in the form of asset accumulation. Thirdly, the project aims to study the extent to which certain income support instruments defined within the framework of the CAP make it possible to achieve the political objectives set in terms of convergence and redistribution of aid, and whether this type of income support proves to be coherent with the simultaneous pursuit of objectives in terms of environmental issues.L’analyse du revenu des agriculteurs doit tenir compte à la fois de sa composition (sources agricoles, sources non agricoles, soutien public), de son niveau (par exploitation, par unité de main d’œuvre, par ménage), de sa dispersion (entre agriculteurs, entre systèmes de production) et de son évolution (à court terme et à long terme). Les objectifs du projet Agr’Income sont ainsi, en premier lieu, de faire le point sur les différentes définitions du concept de "revenu agricole" et sur les indicateurs et sources habituellement utilisés pour le caractériser et le quantifier, puis de décrire le plus précisément possible la diversité des revenus des agriculteurs français. En second lieu, il s’agit d’analyser les déterminants technico-économiques qui président à la construction du revenu dégagé par les exploitations, et les arbitrages entre rémunération immédiate du travail et rémunération différée sous forme de constitution d’un patrimoine. Troisièmement, le projet vise à étudier dans quelle mesure certains instruments de soutien du revenu définis dans le cadre de la PAC permettent d’atteindre les objectifs politiques fixés en matière de convergence et de redistribution des aides, et si ce type de soutien au revenu s’avère cohérent avec la poursuite simultanée d’objectifs en matière de réponse aux enjeux environnementaux