Search results for "production [photon]"
showing 10 items of 138 documents
Correction to: a predictive model for women's assisted fecundity before starting the first IVF/ICSI treatment cycle.
2019
PURPOSE: To introduce a prognostic model for women’s assisted fecundity before starting the first IVF/ICSI treatment cycle. METHODS: In contrast to previous predictive models, we analyze two groups of women at the extremes of prognosis. Specifically, 708 infertile women that had either a live birth (LB) event in the first autologous IVF/ICSI cycle (“high-assisted-fecundity women”, n = 458) or did not succeed in having a LB event after completing three autologous IVF/ICSI cycles (“low-assisted-fecundity women”, n = 250). The initial sample of 708 women was split into two sets in order to develop (n = 531) and internally validate (n = 177) a predictive logistic regression model using a forwar…
La production et valorisation des compétences sur le marché du travail : des approches néo-classiques à l'économie des conventions
2003
This research starts from human capital theory to study the production and valorization of competences in the labor market. Using the potentials and constraints of the neo-classical approach, the incorporation of other areas of economic science as well as other social sciences contributions are proposed. We believe that the key notions economics of education - human capital and wages, are necessary but they are inadequate to explain the level of individual competence or his level of remuneration. We propose a coherent integration of the theoretical and methodological tools of economics of education as well as of the economics of conventions and economics of human resources. And it includes …
Development of Point-to-Point Path Control in Actuator Space for Hydraulic Knuckle Boom Crane
2020
This paper presents a novel method for point-to-point path control for a hydraulic knuckle boom crane. The developed path control algorithm differs from previous solutions by operating in the actuator space instead of the joint space or Cartesian space of the crane. By operating in actuator space, almost all the parameters and constraints of the system become either linear or constant, which greatly reduces the complexity of both the control algorithm and path generator. For a given starting point and endpoint, the motion for each actuator is minimized compared to other methods. This ensures that any change in direction of motion is avoided, thereby greatly minimizing fatigue, jerky motion,…
Producción de personas, reproducción de representaciones. Reflexiones sobre dos programas de capacitación en liderazgo
2020
The present paper addresses the question of the role Executive Education performs in the strengthening and reproduction of neoliberal ideology. It aims to critically reflect on the way selected contents and teaching activities operate jointly enabling or inhibiting certain perspectives regarding work in organizations. Two Leadership training programs are analyzed in this article, currently delivered by the two most prestigious business schools in Argentina: IAE Business School, and Torcuato Di Tella Business School. I begin with a general description of each one and proceed analyzing their educational proposals. Finally, the critical review reveals their consistency with a set of social rep…
An expert system for vineyard management based upon pervasive computer technologies
2009
Determining the optimal maturity level for performing viticulture operations and harvesting activities is a difficult task, because, depending on the variety, the climatic conditions and cultural practices, the phenologic maturation process occurs at different times. Recently, ubiquitous computing technologies allow an extremely precise and cost effective monitoring of environmental conditions by means of an RFID based sensor networks. The implementation of such technologies in vineyard management is nowadays under development, however, besides the possibility of gathering data, the need is perceived of developing decision support tools to fully exploit the potential opportunities of these …
Towards Interactive CLP – Based and Project Driven Oriented DSS Design
2007
Robert Wojcik*, Izabela Tomczuk-Pirog**, Zbigniew Banaszak*** * Institute of Computer Engineering, Control and Robotics, Wroclaw University of Technology, Poland, robert.wojcik@pwr.wroc.pl ** Department of Management and Production Engineering, Technical University of Opole, Poland, itomczuk@po.opole.pl *** Department of Computer Science and Management, Technical University of Koszalin, Poland, banaszak@tu.koszalin.pl
Ranking and comparing key factors causing time-overruns in on-site construction
2022
For years, the construction industry has looked for ways to avoid time-overruns in construction. Despite previous research mapping the factors affecting time performance, site-managers have difficulties in reducing the time-overrun. In order to create a clearer guidance on how to control time-performance, this study investigates the resource related factors because they are within the site-manager’s control. Three Case studies were followed and a survey including 36 participants where conducted. Both investigated and ranked the likelihood of delay due to the seven different resource factors. The ranking of the resource factors was identified as: (1) Construction design, (2) Connecting works…
Production Planning in Production Networks: Models for Medium and Short-term Planning
2008
Distributed production networks are structures which are considered able to provide the organisational agility and efficiency necessary to compete in the global market. The performance of such organisations heavily depends on the ability of those involved in the network to coordinate their activities. Two approaches are available for managing complex distributed production networks: a centralised approach, where a unique entity (the planner, for instance) has all the necessary information to make planning decisions for the entire network; or a decentralised approach where each entity in the network has the necessary information and knowledge to make autonomous planning decisions, while the …
Constructing relational space in early childhood education
2014
This paper examines early childhood education (ECE) by applying and developing relational-spatial perspectives on everyday life in educational institutions for young children. The aim is to investigate the dynamic process of construction of space and to illustrate with selected empirical episodes how this process occurs in ECE. Drawing on authors such as Soja and Bourdieu, the starting point for the analysis is that space is socially produced in everyday interactions in a process that intertwines the physical environment and concrete objects, personal interpretations of physical and cultural space, and cultural and collective views about space in ECE. We illustrate this process with ethnogr…
Is the environmental performance of industrialized countries converging? A ‘SURE’ approach to testing for convergence
2008
In this paper, we test for convergence in the environmental performance of a sample of OECD countries, with data ranging from 1971 to 2002. First, we use Data Envelopment Analysis (DEA) to compute two environmental performance indicators (EPIs) in the production theory framework. Second, we propose the use of a sequential multivariate approach to test for convergence in environmental performance. These tests allow us to reconcile the time series literature with the cross-sectional dimension, which is basic when testing for convergence in regional blocs. The SURE technique is used, which allows for the existence of correlations across the series without imposing a common speed of mean revers…