Strategies to model scheduling decisions to plan the soft drink production process

In this paper we present a mixed integer model that integrates lot sizing and lot scheduling decisions for the production planning of a soft drink company. The main contribution of the paper is to present a model that differ from others in the literature for the constraints related to the scheduling decisions. The proposed strategy is compared to other strategies presented in the literature.

Model of a game for improving integrated decisions in production management

This paper presents the results obtained with a business game whose model represents the decision making process related to two moments at an industrial company. The first refers to the project of the industrial plant, and the second to its management. The game model was conceived so the player's first decision would establish capacity and other parameters such as quantities of each product to produce, marketing expenses, research and development, quality, advertising, salaries, if purchases will be made in installments or in cash, if there will be credit sales and how many installments will be allowed and the number of workers in the assembly area. An experiment was conducted with employees of a Brazilian company. Data obtained indicate that the players have lack of contents, especially in finances. Although these results cannot be generalized, they confirm prior results with undergraduate and graduate students and they indicate the need for reinforcement in this undergraduate area. © 2012 Springer-Verlag.

Coordinación de decisiones en economías mixtas: un desafío para la cooperación del PNUD con América Latina y el Caribe = Decisions co-ordination in mixed economies: a challenge for UNDP co-operation with Latin America and the Caribbean

Exposicion del Jefe de la Division del Programa Regional y del Caribe de Habla Inglesa del PNUD en la inauguracion del Coloquio, en la cual se refiere a la tarea encomendada a este organismo acerca de la coordinacion de la cooperacion en las nuevas tecnicas de planificacion del desarrollo y de la insercion de America Latina y el Caribe en la economia internacional, que la problematica actual requiere.

Method for evaluating the significance of macro-economic variables in the analysis of technology incorporation decisions

Includes bibliography

Cooperative RNA Polymerase Molecules Behavior on a Stochastic Sequence-Dependent Model for Transcription Elongation

The transcription process is crucial to life and the enzyme RNA polymerase (RNAP) is the major component of the transcription machinery. The development of single-molecule techniques, such as magnetic and optical tweezers, atomic-force microscopy and single-molecule fluorescence, increased our understanding of the transcription process and complements traditional biochemical studies. Based on these studies, theoretical models have been proposed to explain and predict the kinetics of the RNAP during the polymerization, highlighting the results achieved by models based on the thermodynamic stability of the transcription elongation complex. However, experiments showed that if more than one RNAP initiates from the same promoter, the transcription behavior slightly changes and new phenomenona are observed. We proposed and implemented a theoretical model that considers collisions between RNAPs and predicts their cooperative behavior during multi-round transcription generalizing the Bai et al. stochastic sequence-dependent model. In our approach, collisions between elongating enzymes modify their transcription rate values. We performed the simulations in Mathematica® and compared the results of the single and the multiple-molecule transcription with experimental results and other theoretical models. Our multi-round approach can recover several expected behaviors, showing that the transcription process for the studied sequences can be accelerated up to 48% when collisions are allowed: the dwell times on pause sites are reduced as well as the distance that the RNAPs backtracked from backtracking sites. © 2013 Costa et al.

Algunas resoluciones y decisiones recientes emanadas de órganos de las Naciones Unidas, que se ponen en conocimiento de la Comisión = Some recent resolutions and decisions adopted by United Nations organs which require to be brought to the attention of the Commission = Résolutions et décisions récemment émanées d'organismes de Nations Unies portées à la connaissance de la Commission

Presenta varias resoluciones aprobadas durante el cuadragesimosegundo periodo de sesiones de la Asamblea General de las Naciones Unidas, Nueva York, 15 septiembre-21 diciembre de 1987, que guardan relacion con la labor de la CEPAL.

Algunas resoluciones y decisiones recientes emanadas de órganos de las Naciones Unidas, que se ponen en conocimiento de la Comisión = Some recent resolutions and decisions adopted by United Nations organs which require to be brought to the attention of the Commission = Résolutions et décisions récemment émanées d'organismes des Nations Unies et portées a la connaissance de la Commission

Incluye Bibliografía

Algunas resoluciones y decisiones recientes emanadas de órganos de las Naciones Unidas, que se ponen en conocimiento de la Comisión = Some recent resolutions and decisions adopted by United Nations organs which require to be brought to the attention of the Commission = Résolutions et décisions récemment émanées d'organismes des Nations Unies et portées a la connaissance de la Commission

Incluye Bibliografía

Algunas resoluciones y decisiones recientes emanadas de órganos de las Naciones Unidas, que se ponen en conocimiento de la Comisión = Some recent resolutions and decisions adopted by United Nations organs which require to be brought to the attention of the Commission = Résolutions et décisions récemment émanées d'organismes des Nations Unies et portées à la connaissance de la Commission

Incluye Bibliografía

Algunas resoluciones y decisiones recientes emanadas de órganos de las Naciones Unidas, que se ponen en conocimiento de la Comisión = Some recent resolutions and decisions adopted by United Nations organs which should be brought to the attention of the Commission = Résolutions et décisions récemment émanées d'organismes des Nations Unies et portées à la connaissance de la Commission

Incluye Bibliografía

Algunas resoluciones y decisiones recientes emanadas de órganos de las Naciones Unidas, que se ponen en conocimiento de la Comisión = Some recent resolutions and decisions adopted by United Nations organs which should be brought to the attention of the Commission = Résolutions et decisions récemment emanées d'organismes des Nations Unies et portées a la connaissance de la Commission

Incluye Bibliografía

Some recent resolutions and decisions adopted by United Nations organs which should be brought to the attention of the Commission

Twenty-seventh session. Oranjestad, Aruba, 11-16 May 1998

Action taken on CDCC resolutions and resolutions of ECLAC and other United Nations bodies with implications for CDCC: resolutions and decisions of ECLAC, ECOSOC and the UN General Assembly with implications for CDCC

Revisa las acciones tomadas en relacion con las resoluciones del CDCC y aquellas de la CEPAL, ECOSOC y Asamblea General, con implicancias para el CDCC.