The project scientist's role in scientific spacecraft project management

The project scientists is in a position which rates very high in terms of behavioral study recommendations. His influence over objectives is generally considered to be important. He is highly autonomous in a moderately coordinated environment. He has diverse managerial and technical functions and the performance of these functions require him to grow beyond his role as an experimenter. However, the position within the line organization for those interviewed is also very stimulating, rating almost as high by the same criteria. The role of project scientist may not be the dominant means of professional growth for the experienced scientific investigators. The influence which the project scientist exerts on the project and the stimulation of that position for him are determined largely by his position outside the defined project scientist role. The role of the project scientist is changing because the environment of those who become project scientists is changing

Introduction to Animal Therapy and its Related Tax Benefits

How are animals being used to improve the emotional and physical health of individuals? What are the tax implications associated with service and therapy animals? We examine these questions by providing an introduction to the subject of Animal Assisted Therapy, including how therapists and counselors are routinely using therapy animals in both individual and group treatment settings. Additionally, we discuss the potential tax savings that may be available to counselors and their clients who are using service and therapy animals. We also offer recommendations and guidance for counselors who wish to incorporate animal therapy into their treatment options

Object-oriented productivity metrics

Software productivity metrics are useful for sizing and costing proposed software and for measuring development productivity. Estimating and measuring source lines of code (SLOC) has proven to be a bad idea because it encourages writing more lines of code and using lower level languages. Function Point Analysis is an improved software metric system, but it is not compatible with newer rapid prototyping and object-oriented approaches to software development. A process is presented here for counting object-oriented effort points, based on a preliminary object-oriented analysis. It is proposed that this approach is compatible with object-oriented analysis, design, programming, and rapid prototyping. Statistics gathered on actual projects are presented to validate the approach

Hardness-based plasticity and fracture model for quench-hardenable boron steel (22MnB5)

A comprehensive strain hardening and fracture characterization of different grades of boron steel blanks has been performed, providing the foundation for the implementation into the modular material model (MMM) framework developed by Volkswagen Group Research for an explicit crash code. Due to the introduction of hardness-based interpolation rules for the characterized main grades, the hardening and fracture behavior is solely described by the underlying Vickers hardness. In other words, knowledge of the hardness distribution within a hot-formed component is enough to set up the newly developed computational model. The hardness distribution can be easily introduced via an experimentally measured hardness curve or via hardness mapping from a corresponding hot-forming simulation. For industrial application using rather coarse and computationally inexpensive shell element meshes, the user material model has been extended by a necking/post-necking model with reduced mesh-dependency as an additional failure mode. The present paper mainly addresses the necking/post-necking model

Dynamic MAIT cell response with progressively enhanced innateness during acute HIV-1 infection.

Mucosa-associated invariant T (MAIT) cell loss in chronic HIV-1 infection is a significant insult to antimicrobial immune defenses. Here we investigate the response of MAIT cells during acute HIV-1 infection utilizing the RV217 cohort with paired longitudinal pre- and post-infection samples. MAIT cells are activated and expand in blood and mucosa coincident with peak HIV-1 viremia, in a manner associated with emerging microbial translocation. This is followed by a phase with elevated function as viral replication is controlled to a set-point level, and later by their functional decline at the onset of chronic infection. Interestingly, enhanced innate-like pathways and characteristics develop progressively in MAIT cells during infection, in parallel with TCR repertoire alterations. These findings delineate the dynamic MAIT cell response to acute HIV-1 infection, and show how the MAIT compartment initially responds and expands with enhanced function, followed by progressive reprogramming away from TCR-dependent antibacterial responses towards innate-like functionality

"Olimpíadas Escolares no Espírito Santo: Continuidades e Descontinuidades (1946-1954)"

Aborda o desenvolvimento das Olimpíadas Escolares no Espírito Santo, no período entre 1946 e 1954. Objetiva compreender as continuidades e as descontinuidades desse fenômeno esportivo e a relação entre o novo modelo de competições estudantis e a cultura esportiva capixaba. Como referencial teórico e metodológico, para a construção da narrativa histórica, utiliza autores como Carlo Ginzburg, Jaques Le Goff, Marc Bloch, Norbert Elias e Roberto Da Mata. Como fontes faz uso da imprensa capixaba, materializada nos principais jornais veiculados no período, do arquivo pessoal do professor Aloyr Queiroz de Araújo, da revista Vida Capichaba, além de entrevistas com atores envolvidos nas Olimpíadas Escolares. As Olimpíadas Escolares foram organizadas pelo Serviço de Educação Física, órgão do governo do Estado ligado à Secretaria de Instrução Pública, tendo como seu idealizador o professor Aloyr Queiroz de Araújo. As competições estudantis eram realizadas bianualmente, tanto na Capital, como no interior do Estado seguindo padrões coubertianos, normalmente promovidas em datas comemorativas demonstrando seu caráter cívico-patriótico. Em relação à escolarização da Educação Física no Estado do Espírito Santo, notamos que o Serviço de Educação Física, órgão criado pelo governo para controlar e dirigir as ações sobre Educação Física nas escolas secundárias do Estado, teve participação decisiva nesse contexto, ao capacitar e formar para o mercado de trabalho professores e monitores da área. Em um primeiro momento, a descontinuidade pode ser percebida quando os jogos escolares são transformados pelo Estado em Olimpíadas Escolares, propondo para essas práticas novos sentidos, próximos daqueles denominados de coubertianos. A segunda descontinuidade ocorre por motivos financeiros, quando o Estado decide abandonar o projeto pedagógico das Olimpíadas Escolares e volta suas energias menos para a cidade e mais para o campo

Interactive effects of elevated temperature and CO2 on two phylogeographically distinct clones of common reed (Phragmites australis)

The aboveground growth, physiological and biochemical parameters of two clones of the cosmopolitan wetland grass Phragmites australis, grown at four treatment combinations of temperature and O2, were investigated to elucidate whether their climate response differed due to inherent differences in their ecological adaptation. The two phylogeographically distinct P. australis clones (DK clone, European genetic background; ALG clone, Mediterranean genetic background) were grown for 151 days in phytotrons at 19/12 8C (day/night temperature) and 390 ppm CO2, and at elevated temperature (+5 8C) and CO2 (700 ppm) with treatment factors alone or in combination. The ALG clone had 2–4 times higher aboveground biomass, higher light-saturated rates of photosynthesis (Pmax), maximum electron transport rates (ETRmax) and Rubisco activity, and higher photosynthetic nitrogen-use efficiency than the DK clone. The DK clone, however, produced more shoots, leaves and sideshoots, and had 9–51 % higher specific leaf area and 15–39 % higher leaf nitrogen concentration than the ALG clone. Although elevated atmospheric CO2 alone barely affected the aboveground growth of the two P. australis clones, simultaneously elevated temperature and CO2 stimulated growth and aboveground biomass. Overall, elevated CO2 stimulated photosynthesis, but the clones responded differently to a concomitant increase in CO2 and temperature, depending on the phylogeographic background of the plant. The DK clone showed overall stronger responses, and can be considered the more plastic of the two clones with respect to CO2 and temperature. Thus, the DK clone may be better adapted to climate change than the ALG clone, at least in the short term

Sonoluminescing air bubbles rectify argon

The dynamics of single bubble sonoluminescence (SBSL) strongly depends on the percentage of inert gas within the bubble. We propose a theory for this dependence, based on a combination of principles from sonochemistry and hydrodynamic stability. The nitrogen and oxygen dissociation and subsequent reaction to water soluble gases implies that strongly forced air bubbles eventually consist of pure argon. Thus it is the partial argon (or any other inert gas) pressure which is relevant for stability. The theory provides quantitative explanations for many aspects of SBSL.Comment: 4 page

Identification of plasticity model parameters of the heat-affected zone in resistance spot welded martensitic boron steel

A material model is developed that predicts the plastic behavior of fully hardened 22MnB5 base material and the heat-affected zone (HAZ) material found around its corresponding resistance spot welds (RSWs). Main focus will be on an accurate representation of strain fields up to high strains, which is required for subsequent calibration of the fracture behavior of both base material and HAZ. The plastic be-havior of the base material is calibrated using standard tensile tests and notched tensile tests and an inverse FEM optimization algorithm. The plastic behavior of the HAZ material is characterized using a specially designed tensile specimen with a HAZ in the gage section. The exact location of the HAZ relative to the center of the RSW is determined using microhardness measurements, which are also used for mapping of the material properties into an FE-model of the specimen. With the parameters of the base material known, and by assuming a linear relation between the hardness and the plasticity model parameters of base material and HAZ, the unknown HAZ parameters are determined using inverse FEM optimization. A coupon specimen with HAZ is used to validate the model at hand