Project Manager and Systems Engineer: a literature rich reflection on roles and responsibilities

There are several definitions of Systems Engineering (SE) in the literature, each with different definitions of its relationship with Project Management (PM), causing a great deal of misunderstanding. The paper offers a broad and critical discussion of the relevant literature with a deep reflection concerning the historical evolution and state-of-the-art of both the definition of SE and its relationship with PM. This endeavor provides two main results: (i) a conceptual framework to define SE in a project based environment and (ii) a model to identify the best formal interaction between the Project Manager and System Engineer based on the project characteristics

Recuperação de Mata Ciliar em Ouro Preto do Oeste, estado de Rondônia, Brasil.

Este trabalho foi realizado na bacia do rio Boa Vista localizada no município de Ouro Preto do Oeste, Rondônia, com o intuito de avaliar o desenvolvimento de um plantio de espécies arbóreas na área de mata ciliar. A recuperação desta bacia se deu mediante acordos firmados entre o poder público Estadual e a sociedade envolvida, a partir daí vários produtores se engajaram no projeto, visto que o rio é muito importante na região e também é fonte de captação da água que abastece a cidade. Foi observado a área de um produtor envolvido neste processo. No caso em estudo foram encontradas 13 espécies, 11 famílias e 92 indivíduos plantados e nativos, com grande chance de sobrevivência nas parcelas.Resumos do VIII Congresso Brasileiro de Agroecologia. Porto Alegre/RS - 25 a 28/11/2013. Trabalho n. 14816

Temperature dependence of surface stress across an order-disorder transition: p(1x2)O/W(110)

Strain relaxations of a p(1x2) ordered oxygen layer on W(110) are measured as a function of temperature across the disordering transition using low-energy electron diffraction. The measured strains approach values of 0.027 in the [1-10] and -0.053 in the [001] direction. On the basis of the measured strain relaxations, we give quantitative information on temperature-dependent surface stress using the results of ab initio calculations. From the surface formation energy for different strains, determined by first-principles calculations, we estimate that surface stress changes from -1.1 for the ordered phase to -0.2N/m for the disordered one along [1-10], and from 5.1 to 3.4 N/m along [001]. Moreover, our observation that the strains scale inversely with domain size confirms that the strain relaxation takes place at the domain boundaries.Comment: 8 pages, 5 figure

Light filth method on semolina and pasta

Samples of semolina and pasta were collected from one mill and one pasta plant in Italy for six and four years respectively. They were analyzed by AOAC light filth method (225 g). Altogether, 195 semolina were collected from 2007 to 2012. The mean number of insect fragments detected during this period was 4.9, and each year, a mean of one first instar larva of Stegobium paniceum (L.) was found. A single mite was detected in only one sample. A total of 156 samples of pasta were analyzed during the period 2009 to 2012 and the mean number of fragments in these samples was 10.1. Mandibles of Sitophilus oryzae (L.) and Tribolium spp. were the most identified filths. Fragments were mainly derived from infestation prior to milling, both in semolina and pasta samples. In fact, fragment size was lower than the granulometry of semolina. Rodent hair was found in few samples

Biomassa e teores de nutrientes da serrapilheira e caracterização do solo em sistema agroflorestal de castanheira-do-brasil e cupuaçuzeiro em Porto Velho, Rondônia.

O objetivo deste trabalho foi avaliar a produção de serrapilheira e nutrientes presentes na mesma e no solo em um sistema agroflorestal de castanheira-do-brasil e cupuaçuzeiro, em Porto Velho, Rondônia