347 research outputs found

    Instruction for Quality Service: a Curricular Unit

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    The purpose of this project was to design an in depth and inclusive curricular unit for quality food service to accommodate an emergent industry. It is intended to meet the needs of students and professionals in culinary or formal training programs. This work is designed to involve various methods of instruction that consider diverse learners and their learning styles. In addition, the author sought to provide a well rounded and inclusive back ground in the history and evolution of food service. Also investigated were the many facets of management and technical skills involved in a real life environment. The project resulted in an 11 week curricular unit that involves effective and thoughtful quality food service skill

    A Lagrangian Perspective of Microphysical Impact on Ice Cloud Evolution and Radiative Heating

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    We generate trajectories in storm-resolving simulations in order to quantify the effect of ice microphysics on tropical upper-tropospheric cloud-radiative heating. The pressure and flow field tracked along the trajectories are used to run different ice microphysical schemes, both one- and two-moment formulations within the Icosahedral Non-hydrostatic Model model and a separate offline box microphysics model (CLaMS-Ice). This computational approach allows us to isolate purely microphysical differences in a variant of “microphysical piggybacking;” feedbacks of microphysics onto pressure and the flow field, for example, via latent heating, are suppressed. Despite these constraints, we find about a 5-fold difference in median cloud ice mass mixing ratios (qi_i) and ice crystal number (Ni_i) between the microphysical schemes and very distinct qi_i distributions versus temperature and relative humidity with respect to ice along the trajectories. After investigating microphysical formulations for nucleation, depositional growth, and sedimentation, we propose three cirrus lifecycles: a weak source-strong sink lifecycle whose longwave and shortwave heating are smallest due to short lifetime and low optical depth, a strong source-weak sink lifecycle whose longwave and shortwave heating are largest due to long lifetime and high optical depth, and a strong source-strong sink lifecycle with intermediate radiative properties

    The motivating operation and negatively reinforced problem behavior. A systematic review.

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    The concept of motivational operations exerts an increasing influence on the understanding and assessment of problem behavior in people with intellectual and developmental disability. In this systematic review of 59 methodologically robust studies of the influence of motivational operations in negative reinforcement paradigms in this population, we identify themes related to situational and biological variables that have implications for assessment, intervention, and further research. There is now good evidence that motivational operations of differing origins influence negatively reinforced problem behavior, and that these might be subject to manipulation to facilitate favorable outcomes. There is also good evidence that some biological variables warrant consideration in assessment procedures as they predispose the person's behavior to be influenced by specific motivational operations. The implications for assessment and intervention are made explicit with reference to variables that are open to manipulation or that require further research and conceptualization within causal models

    Pathologic expansion in the C9orf72 gene is associated with accelerated decline of respiratory function and decreased survival in amyotrophic lateral sclerosis

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    Abstract in proceedings of the Fourth International Congress of CiiEM: Health, Well-Being and Ageing in the 21st Century, held at Egas Moniz’ University Campus in Monte de Caparica, Almada, from 3–5 June 2019.This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.info:eu-repo/semantics/publishedVersio

    Aerosol-cloud interactions in mixed-phase convective clouds - Part 1: Aerosol perturbations

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    Changes induced by perturbed aerosol conditions in moderately deep mixed-phase convective clouds (cloud top height 5 km) developing along sea-breeze convergence lines are investigated with high-resolution numerical model simulations. The simulations utilise the newly developed Cloud-AeroSol Interacting Microphysics (CASIM) module for the Unified Model (UM), which allows for the representation of the two-way interaction between cloud and aerosol fields. Simulations are evaluated against observations collected during the COnvective Precipitation Experiment (COPE) field campaign over the southwestern peninsula of the UK in 2013. The simulations compare favourably with observed thermodynamic profiles, cloud base cloud droplet number concentrations (CDNC), cloud depth, and radar reflectivity statistics. Including the modification of aerosol fields by cloud microphysical processes improves the correspondence with observed CDNC values and spatial variability, but reduces the agreement with observations for average cloud size and cloud top height. Accumulated precipitation is suppressed for higher-aerosol conditions before clouds become organised along the sea-breeze convergence lines. Changes in precipitation are smaller in simulations with aerosol processing. The precipitation suppression is due to less efficient precipitation production by warm-phase microphysics, consistent with parcel model predictions. In contrast, after convective cells organise along the sea-breeze convergence zone, accumulated precipitation increases with aerosol concentrations. Condensate production increases with the aerosol concentrations due to higher vertical velocities in the convective cores and higher cloud top heights. However, for the highest-aerosol scenarios, no further increase in the condensate production occurs, as clouds grow into an upper-level stable layer. In these cases, the reduced precipitation efficiency (PE) dominates the precipitation response and no further precipitation enhancement occurs. Previous studies of deep convective clouds have related larger vertical velocities under high-aerosol conditions to enhanced latent heating from freezing. In the presented simulations changes in latent heating above the 0°C are negligible, but latent heating from condensation increases with aerosol concentrations. It is hypothesised that this increase is related to changes in the cloud field structure reducing the mixing of environmental air into the convective core. The precipitation response of the deeper mixed-phase clouds along well-established convergence lines can be the opposite of predictions from parcel models. This occurs when clouds interact with a pre-existing thermodynamic environment and cloud field structural changes occur that are not captured by simple parcel model approaches
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