856 resultados para e-procurement


Relevância:

20.00% 20.00%

Publicador:

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The aim of this article is to discuss whether public procurement policy can promote innovation by firms located in developing countries. The literature on technological learning is used to create a typology for assessing the impact of public procurement in developing countries from the standpoint of innovation. Petrobras, a Brazilian state-owned enterprise, was chosen as a case study. Petrobras is a global leader in the field of deepwater oil production technology and so offers an interesting opportunity to investigate whether government procurement in developing countries is used to promote the capability of domestic firms to develop innovations. The article presents the findings of a field survey on P-51, a platform that was ordered by the Brazilian state-owned enterprise and began producing in 2009. The case study is based on information collected from interviews with managers of Petrobras, EPC contractors and some of the firms subcontracted to work on P-51.

Relevância:

20.00% 20.00%

Publicador:

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The thesis explores ways to formalize the legal knowledge concerning the public procurement domain by means of ontological patterns suitable, on one hand, to support awarding authorities in conducting procurement procedures and, on the other hand, to help citizens and economic operators in accessing procurement's notices and data. Such an investigation on the making up of conceptual models for the public procurement domain, in turn, inspires and motivates a reflection on the role of legal ontologies nowadays, as in the past, retracing the steps of the ``ontological legal thinking'' from Roman Law up to now. I try, at the same time, to forecast the impact, in terms of benefits, challenges and critical issues, of the application of computational models of Law in future e-Governance scenarios.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Bucknell University is piloting a centralized e-procurement system for institutional purchasing that will streamline the procurement process.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

To date, no research has rigorously addressed the concern that local and regional procurement (LRP) of food aid could affect food prices and food price volatility in food aid source and recipient countries. We assemble spatially and temporally disaggregated data and estimate the relationship between food prices and their volatility and local food aid procurement and distribution across seven countries for several commodities. In most cases, LRP activities have no statistically significant relationship with either local price levels or food price volatility. The few exceptions underscore the importance of market monitoring. (C) 2013 Elsevier Ltd. All rights reserved.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Local and regional procurement (LRP) of food aid is often claimed to lead to quicker and more cost-effective response. We generate timeliness and cost-effectiveness estimates by comparing US-funded LRP activities in nine countries against in-kind, transoceanic food aid shipments from the US to the same countries during the same timeframe. Procuring food locally or distributing cash or vouchers results in a time savings of nearly 14 weeks, a 62 percent gain. Cost-effectiveness varies significantly by commodity type. Procuring grains locally saved over 50 percent, on average, while local procurement of processed commodities was not always cost-effective. (C) 2013 Elsevier Ltd. All rights reserved.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

We compare the impacts across a range of criteria of local and regional procurement (LRP) relative to transoceanic shipment of food aid in Burkina Faso and Guatemala. We find that neither instrument dominates the other across all criteria in either country, although LRP commonly performs at least as well as transoceanic shipment with respect to timeliness, cost, market price impacts, satisfying recipients' preferences, food quality and safety, and in benefiting smallholder suppliers. LRP is plainly a valuable food assistance tool, but its advantages and disadvantages must be carefully weighed, compared, and prioritized depending on the context and program objectives. (C) 2013 Elsevier Ltd. All rights reserved.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

OBJECTIVES: Donation after circulatory declaration of death (DCDD) could significantly improve the number of cardiac grafts for transplantation. Graft evaluation is particularly important in the setting of DCDD given that conditions of cardio-circulatory arrest and warm ischaemia differ, leading to variable tissue injury. The aim of this study was to identify, at the time of heart procurement, means to predict contractile recovery following cardioplegic storage and reperfusion using an isolated rat heart model. Identification of reliable approaches to evaluate cardiac grafts is key in the development of protocols for heart transplantation with DCDD. METHODS: Hearts isolated from anaesthetized male Wistar rats (n = 34) were exposed to various perfusion protocols. To simulate DCDD conditions, rats were exsanguinated and maintained at 37°C for 15-25 min (warm ischaemia). Isolated hearts were perfused with modified Krebs-Henseleit buffer for 10 min (unloaded), arrested with cardioplegia, stored for 3 h at 4°C and then reperfused for 120 min (unloaded for 60 min, then loaded for 60 min). Left ventricular (LV) function was assessed using an intraventricular micro-tip pressure catheter. Statistical significance was determined using the non-parametric Spearman rho correlation analysis. RESULTS: After 120 min of reperfusion, recovery of LV work measured as developed pressure (DP)-heart rate (HR) product ranged from 0 to 15 ± 6.1 mmHg beats min(-1) 10(-3) following warm ischaemia of 15-25 min. Several haemodynamic parameters measured during early, unloaded perfusion at the time of heart procurement, including HR and the peak systolic pressure-HR product, correlated significantly with contractile recovery after cardioplegic storage and 120 min of reperfusion (P < 0.001). Coronary flow, oxygen consumption and lactate dehydrogenase release also correlated significantly with contractile recovery following cardioplegic storage and 120 min of reperfusion (P < 0.05). CONCLUSIONS: Haemodynamic and biochemical parameters measured at the time of organ procurement could serve as predictive indicators of contractile recovery. We believe that evaluation of graft suitability is feasible prior to transplantation with DCDD, and may, consequently, increase donor heart availability.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The rate of destruction of tropical forests continues to accelerate at an alarming rate contributing to an important fraction of overall greenhouse gas emissions. In recent years, much hope has been vested in the emerging REDD+ framework under the UN Framework Convention on Climate Change (UNFCCC), which aims at creating an international incentive system to reduce emissions from deforestation and forest degradation. This paper argues that in the absence of an international consensus on the design of results-based payments, “bottom-up” initiatives should take the lead and explore new avenues. It suggests that a call for tender for REDD+ credits might both assist in leveraging private investments and spending scarce public funds in a cost-efficient manner. The paper discusses the pros and cons of results-based approaches, provides an overview of the goals and principles that govern public procurement and discusses their relevance for the purchase of REDD+ credits, in particular within the ambit of the European Union.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This paper discusses a model based on the agency theory to analyze the optimal transfer of construction risk in public works contracts. The base assumption is that of a contract between a principal (public authority) and an agent (firm), where the payment mechanism is linear and contains an incentive mechanism to enhance the effort of the agent to reduce construction costs. A theoretical model is proposed starting from a cost function with a random component and assuming that both the public authority and the firm are risk averse. The main outcome of the paper is that the optimal transfer of construction risk will be lower when the variance of errors in cost forecast, the risk aversion of the firm and the marginal cost of public funds are larger, while the optimal transfer of construction risk will grow when the variance of errors in cost monitoring and the risk aversion of the public authority are larger

Relevância:

20.00% 20.00%

Publicador:

Resumo:

El propósito de este proyecto es el desarrollo de un sistema de aprovisionamiento electrónico para gestionar los pedidos de las tiendas al almacén mediante mensajería SOAP. El sistema consiste en dos aplicaciones Web, la primera instalada en el almacén y otra instalada en las tiendas asociadas a dicho almacén. Ambas aplicaciones se desarrollarán en Java y JSP utilizando el Framework Spring e Hibernate para la persistencia en base de datos. La mensajería entre las aplicaciones se realizará con mensajes SOAP enviados a servicios Web publicados en ambas aplicaciones. En la primera parte del trabajo se realizará una explicación del Framework de Spring e Hibernate focalizando sobre todo en los módulos utilizados en el trabajo. También se realizará una explicación acerca de la mensajería SOAP y los servicios Web. En la segunda parte se realizarán las dos aplicaciones del sistema. La aplicación de gestión de la tienda permitirá a los usuarios realizar pedidos al almacén, recibir las mercancías y consultar el histórico de pedidos realizados. Además tendrá publicados dos servicios web para recibir las expediciones de los pedidos y los productos nuevos o modificados en el almacén. La aplicación de gestión del almacén permitirá a los usuarios crear / modificar productos, expedir los pedidos recibidos de las tiendas y consultar el histórico de pedidos recibidos. Además tendrá publicados dos servicios web para recibir los pedidos y las recepciones de mercancías desde las tiendas. En esta aplicación también se implementará una tarea programada que se ejecutará cada tres minutos y que sincronizará con las tiendas los productos nuevos o modificados en el almacén mediante mensajes SOAP. SUMMARY The aim of this project is the development of an e-procurement system to manage orders from shops to the storehouse using SOAP messaging. The system consists of two Web applications, the first one is installed in the storehouse and the other is installed in the shops associated to that storehouse. Both applications will be developed in Java and JSP using the Spring Framework and Hibernate for database persistence. The messaging between applications is performed with SOAP messages sent to Web services published in both applications. In the first part of the project an explanation of the Spring Framework and Hibernate will be performed, especially focusing on modules used in the project. An explanation about SOAP messaging and Web services will be carried out too. In the second part of the project the two system applications will be performed. The store management application will allow the users to make purchase orders to the storehouse, receive items and consult the order history carried out. In addition it will have two Web Services published in order to receive the shipping orders and the new or modified products in the storehouse. The management application of the storehouse will allow the users to create and modify products, send the orders received from stores and consult the orders history received. Besides, it will have two Web Services published to receive the orders and receipts from stores. A scheduled task run every three minutes will also be performed in this application. It will synchronize the new or modified products with stores using SOAP messaging.