191 research outputs found

    Project Management in Product Development: Toward a Framework for Targeted Flexibility

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    As a discipline, project management has been accused of having lost its relevance for innovative initiatives because it emphasizes planning and control over the flexibility and learning-based strategies that are needed to succeed under uncertainty. Several authors therefore recommend adaptive project management practices - sometimes named “targeted flexibility” - that respond to project characteristics commonly found in innovation, namely novelty, complexity, speed and - as a result - uncertainty. This paper investigates how this proposed adaptation of project management occurs in a context with high levels of novelty that organizes work in projects and needs to accommodate projects of different pace, complexity and innovativeness: product development in small and medium enterprises that do research and development work in the same organizational unit. Results of a literature review and two exploratory studies, covering a total of 8 companies with multiple projects each, are presented. Implications for a future framework for targeted flexibility are developed, leading to the identification of the following needs for project management: (1) better understanding of the many ways in which project management impacts exploration and exploitation activities, (2) improved attention for the currently poorly supported pre-project and early initiation stages, (3) a shift of focus from monitoring against plans toward monitoring against achieved learning, and (4) the formulation of transition paths from current new product development practice to higher project management maturity

    Heuristics in Decision Making

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    Heuristics are simple rules of thumbs for problem solving that follow a logic that is quite different from consequential logic. They have long been regarded, as an inferior technique for decision making that is the source of irrational decision behavior. Recently, decision making researchers have demonstrated that some heuristics are highly efficient and can compete with complex decision models in some application domains. This paper explores the different streams of research, summarizes the state of the art decision making model, and discusses its implications for complex decisions in engineering and technology management

    TRANSFERENCIAS ENTRE LOS MISTERIOS Y EL CRISTIANISMO: PROBLEMAS Y TENDENCIAS

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    El artículo estudia desde un punto de vista crítico los ritos mistéricos paganos y qué hay de verdad en su posible relación con el cristianismo

    Field measurements of trace gases and aerosols emitted by peat fires in Central Kalimantan, Indonesia, during the 2015 El Nino

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    Abstract. Peat fires in Southeast Asia have become a major annual source of trace gases and particles to the regional–global atmosphere. The assessment of their influence on atmospheric chemistry, climate, air quality, and health has been uncertain partly due to a lack of field measurements of the smoke characteristics. During the strong 2015 El Niño event we deployed a mobile smoke sampling team in the Indonesian province of Central Kalimantan on the island of Borneo and made the first, or rare, field measurements of trace gases, aerosol optical properties, and aerosol mass emissions for authentic peat fires burning at various depths in different peat types. This paper reports the trace gas and aerosol measurements obtained by Fourier transform infrared spectroscopy, whole air sampling, photoacoustic extinctiometers (405 and 870 nm), and a small subset of the data from analyses of particulate filters. The trace gas measurements provide emission factors (EFs; grams of a compound per kilogram biomass burned) for up to  ∼  90 gases, including CO2, CO, CH4, non-methane hydrocarbons up to C10, 15 oxygenated organic compounds, NH3, HCN, NOx, OCS, HCl, etc. The modified combustion efficiency (MCE) of the smoke sources ranged from 0.693 to 0.835 with an average of 0.772 ± 0.053 (n  =  35), indicating essentially pure smoldering combustion, and the emissions were not initially strongly lofted. The major trace gas emissions by mass (EF as g kg−1) were carbon dioxide (1564 ± 77), carbon monoxide (291 ± 49), methane (9.51 ± 4.74), hydrogen cyanide (5.75 ± 1.60), acetic acid (3.89 ± 1.65), ammonia (2.86 ± 1.00), methanol (2.14 ± 1.22), ethane (1.52 ± 0.66), dihydrogen (1.22 ± 1.01), propylene (1.07 ± 0.53), propane (0.989 ± 0.644), ethylene (0.961 ± 0.528), benzene (0.954 ± 0.394), formaldehyde (0.867 ± 0.479), hydroxyacetone (0.860 ± 0.433), furan (0.772 ± 0.035), acetaldehyde (0.697 ± 0.460), and acetone (0.691 ± 0.356). These field data support significant revision of the EFs for CO2 (−8 %), CH4 (−55 %), NH3 (−86 %), CO (+39 %), and other gases compared with widely used recommendations for tropical peat fires based on a lab study of a single sample published in 2003. BTEX compounds (benzene, toluene, ethylbenzene, xylenes) are important air toxics and aerosol precursors and were emitted in total at 1.5 ± 0.6 g kg−1. Formaldehyde is probably the air toxic gas most likely to cause local exposures that exceed recommended levels. The field results from Kalimantan were in reasonable agreement with recent lab measurements of smoldering Kalimantan peat for “overlap species,” lending importance to the lab finding that burning peat produces large emissions of acetamide, acrolein, methylglyoxal, etc., which were not measurable in the field with the deployed equipment and implying value in continued similar efforts. The aerosol optical data measured include EFs for the scattering and absorption coefficients (EF Bscat and EF Babs, m2 kg−1 fuel burned) and the single scattering albedo (SSA) at 870 and 405 nm, as well as the absorption Ångström exponents (AAE). By coupling the absorption and co-located trace gas and filter data we estimated black carbon (BC) EFs (g kg−1) and the mass absorption coefficient (MAC, m2 g−1) for the bulk organic carbon (OC) due to brown carbon (BrC). Consistent with the minimal flaming, the emissions of BC were negligible (0.0055 ± 0.0016 g kg−1). Aerosol absorption at 405 nm was  ∼  52 times larger than at 870 nm and BrC contributed  ∼  96 % of the absorption at 405 nm. Average AAE was 4.97 ± 0.65 (range, 4.29–6.23). The average SSA at 405 nm (0.974 ± 0.016) was marginally lower than the average SSA at 870 nm (0.998 ± 0.001). These data facilitate modeling climate-relevant aerosol optical properties across much of the UV/visible spectrum and the high AAE and lower SSA at 405 nm demonstrate the dominance of absorption by the organic aerosol. Comparing the Babs at 405 nm to the simultaneously measured OC mass on filters suggests a low MAC ( ∼  0.1) for the bulk OC, as expected for the low BC/OC ratio in the aerosol. The importance of pyrolysis (at lower MCE), as opposed to glowing (at higher MCE), in producing BrC is seen in the increase of AAE with lower MCE (r2 =  0.65)

    Java API for MiAPE Generation

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    Comunicaciones a congreso

    RoMoMatteR: Empowering Roma Girls’ Mattering through Reproductive Justice

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    Aim: To present a protocol study directed at tackling gender discrimination against Roma girls by empowering their mattering so they can envision their own futures and choose motherhood only if—and when—they are ready. Background: Motherhood among Roma girls (RGM) in Europe impoverishes their lives, puts them at risk of poor physical and mental health and precipitates school dropouts. Overwhelming evidence affirms that the conditions of poverty and the social exclusionary processes they suffer have a very important explanatory weight in their sexual and reproductive decisions. Methods: Through a Community-based Participatory Action Research design, 20–25 Roma girls will be recruited in each one of the four impoverished communities in Bulgaria, Romania and Spain. Data collection and analysis: Desk review about scientific evidences and policies will be carried out to frame the problem. Narratives of Roma women as well as baseline and end line interviews of girl participants will be collected through both qualitative and quantitative techniques. Quantitative data will be gathered through reliable scales of mattering, socio–political agency, satisfaction with life and self. A narrative analysis of the qualitative information generated in the interviews will be carried out. Expected results: (1) uncover contextual and psychosocial patterns of girl-motherhood among Roma women; (2) build critical thinking among Roma girls to actively participate in all decisions affecting them and advocate for their own gender rights within their communities; and (3) empower Roma girls and their significant adults to critically evaluate their own initiatives and provide feedback to their relevant stakeholders. Conclusions: Roma girls will improve their educational aspirations and achievements and their social status while respecting and enhancing Roma values.This initiative is funded by the DG Justice of the European Commission in the Call for proposals for action grants under 2017 Rights Equality and Citizenship Work REC-AG #809813
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