Search results for " Network"

Margin Calling Margin: Linking Universities, Students and Alumni through a Private Alumni Network Online

2014

International audience

Peut-on concilier un faible usage de pesticides, une bonne performance économique et environnementale ? Analyse d’un réseau national de fermes de dém…

2017

Feeding an increasing world population with a sustainable agriculture is one of the greatest challenges of this century. The reduction of the reliance on pesticides is a critical aspect in this quest for sustainability. Whether cropping systems with reduced reliance on pesticides would be able to reconcile the various components of sustainability remains however a matter of debate. Are they as productive and profitable than current mainstream cropping systems? Here the objective is to study the feasibility of a reduced reliance on pesticides in France. We used a unique dataset from a national network of more than thousand arable commercial farms between 2009 and 2011. Launched in the framew…

Personal branding or employee advocacy : expert's use of social networking site

2017

This paper deals with social media in building experts’ professional images. In the theoretical part, online communities are discussed in the light of the paper’s topic. The study relies on technological adoption models, and in particular, the UTAUT (Unified Theory of Acceptance and Use of Technology) 2 model. In the empirical part, the use of LinkedIn was analyzed as the major tool for professional networking. Our research results suggest that the use of LinkedIn has been initiated mostly by invitation or encouragement of another user. Only in rare occasions, self-branding was reported as the primary motivation to register into LinkedIn. Self-presentation was improved in the process of usi…

PROPAGATING INTERFACES IN A TWO-LAYER BISTABLE NEURAL NETWORK

2006

The dynamics of propagating interfaces in a bistable neural network is investigated. We consider the network composed of two coupled 1D lattices and assume that they interact in a local spatial point (pin contact). The network unit is modeled by the FitzHugh–Nagumo-like system in a bistable oscillator mode. The interfaces describe the transition of the network units from the rest (unexcited) state to the excited state where each unit exhibits periodic sequences of excitation pulses or action potentials. We show how the localized inter-layer interaction provides an "excitatory" or "inhibitory" action to the oscillatory activity. In particular, we describe the interface propagation failure a…

Pinning of a kink in a nonlinear diffusive medium with a geometrical bifurcation: Theory and experiments

2004

International audience; We study the dynamics of a kink propagating in a Nagumo chain presenting a geometrical bifurcation. In the case of weak couplings, we define analytically and numerically the coupling conditions leading to the pinning of the kink at the bifurcation site. Moreover, real experiments using a nonlinear electrical lattice confirm the theoretical and numerical predictions.

Does taking additional Maths classes improve university performance?

2022

Several recent studies in educational literature showed how students’ skills in maths affect their success at higher levels of education. The aim of this paper is to evaluate the effect of taking additional maths class at high school on first-year performance of Italian university students. However, university performance and the choice of the high-school depend on several factors that make this evaluation challenging. Using information coming from three different sources, we carry out a multilevel propensity score procedure to estimate the average treatment effect between the applied sciences track and the traditional scientific one. After balancing for school- and student-level covariates…

Protein Interaction Networks in Health and Disease

2016

Proteomics in antitumor research

2006

Proteins are the molecular players of fine-tuned regulatory pathways that underlie the behavior of any cell type. Derangement of this wide protein circuitry has a profound effect on cell life and ultimately contributes to the development of diseases such as cancer. New proteomic technologies are rapidly evolving to define and characterize the nodes of this altered protein network, both inside and outside cancer cells. Hopefully, these technologies will become user-friendly laboratory tools to improve cancer management from early detection to the development of rational and patient-tailored therapeutic strategies.

Analiza D-stabilności protokołu TCP-DCR

2012

Praca zawiera analizę stabilności sieci na podstawie protokołu TCP-DCR, będącego modyfikacją tradycyjnego TCP. Utworzono model matematyczny sieci i opisano go równaniami. Schemat blokowy modelu sieci przekształcono do takiej postaci, aby zbadać jego D-stabilność stosując metodę przestrzeni niepewnych parametrów.

Estar al otro lado de la mesa. Profesionales de los servicios públicos de empleo ante los dilemas de la activación laboral

2019

Under the paradigm of activation, the Public Employment Services has been reshaped by two levels of contractualization. On one hand, the collaboration of the administration with a network of agents on the programme scheme that make up the active policies of employment. On the other hand, the unemployed person?s access to a compartmentalized offer of services and individually taking responsibility for finding work. This double contractualization reveals redefinition of lowering public responsibility faced with the problem of unemployment that this activation supposes. This paper analyses how this redesign has an impact on how professionals serve the unemployed population. This lays bare, in …