Experiências e expectativas de enfermeiros no cuidado ao doador de órgãos e à sua família

RESUMO Objetivo Compreender as experiências e expectativas dos enfermeiros de unidades de terapia intensiva no cuidado ao doador de órgãos para transplantes e à sua família. Método Pesquisa qualitativa, com abordagem da Fenomenologia Social realizada em 2013, com 20 enfermeiros. Resultados As experiências dos enfermeiros com as famílias dos doadores foram representadas pelas categorias: obstáculos vivenciados e intervenções realizadas no cuidado às famílias dos doadores. As expectativas desses profissionais na assistência às famílias e aos doadores de órgãos foram descritas pela categoria: cuidar para salvar vidas. Conclusão O estudo mostrou que o cotidiano dos enfermeiros de terapia intensiva no cuidado às famílias e aos doadores de órgãos é permeado por obstáculos que interferem no processo de doação. Diante desse cenário têm como expectativas oferecer uma assistência intensiva ao doador falecido e um cuidado humanizado às famílias, intencionando possibilitar a aceitação da doação de órgãos pelos familiares e viabilizar órgãos para transplantes

Catalytic C(sp3)-H bond activation in tertiary alkylamines.

The development of robust catalytic methods to assemble tertiary alkylamines provides a continual challenge to chemical synthesis. In this regard, transformation of a traditionally unreactive C-H bond, proximal to the nitrogen atom, into a versatile chemical entity would be a powerful strategy for introducing functional complexity to tertiary alkylamines. A practical and selective metal-catalysed C(sp3)-H activation facilitated by the tertiary alkylamine functionality, however, remains an unsolved problem. Here, we report a Pd(II)-catalysed protocol that appends arene feedstocks to tertiary alkylamines via C(sp3)-H functionalization. A simple ligand for Pd(II) orchestrates the C-H activation step in favour of deleterious pathways. The reaction can use both simple and complex starting materials to produce a range of multifaceted γ-aryl tertiary alkylamines and can be rendered enantioselective. The enabling features of this transformation should be attractive to practitioners of synthetic and medicinal chemistry as well as in other areas that use biologically active alkylamines

A Strange Term in the Homogenization of Parabolic Equations with Two Spatial and Two Temporal Scales

We study the homogenization of a parabolic equation with oscillations in both space and time in the coefficient a x/ε, t/ε 2 in the elliptic part and spatial oscillations in the coefficient ρ x/ε that is multiplied with the time derivative ∂ t u ε . We obtain a strange term in the local problem. This phenomenon appears as a consequence of the combination of the spatial oscillation in ρ x/ε and the temporal oscillation in a x/ε, t/ε 2 and disappears if either of these oscillations is removed

Vibroacoustic performance of multi-storey buildings : A comparison of lightweight and heavy structures in the early design phase

With the construction sector being responsible for about 40% of the energy and material use, the sector has a great responsibility for lowering the consumption if we are to succeed in our global pursuit for the green transition. However, buildings must still comply with the demands of users. For long-span, openspace lightweight, multi-storey buildings, this provides a potential risk related to annoyance caused by vibration and structure borne noise. This paper addresses the multilateral effects of building typology in terms of the vibroacoustic performance and the environmental impact. Based on an automized digital framework, multistorey buildings made of cross-laminated timber and/or concrete are modelled and compared. Finite-element analysis is used for the dynamic structural analysis, and the architectural design tool Rhino is used for material take-offs and visualisation. The aim of the paper is to provide insight into the advantages and disadvantages of different building typologies to be used for informed decision making in the early stages of design

Early assessment of the vibroacoustic performance of large lightweight buildings

As part of the green transition, a current trend in the construction sector is to utilize more wood and lightweight composites, aiming at a reduction of the embodied energy in buildings. At the same time, with a focus on circularity and reuse, large-span structures are preferable, since they provide more flexibility for future uses of the building. The mix of large spans and lightweight structures pose a risk in terms of increased vibration levels. Hence, assessment of the vibroacoustic performance of a building is necessary in the early design stage to guide the designers towards useful solutions. This paper presents a computational framework for such assessment. While the framework is based on the combination of advanced digital tools for architectural design and rigorous finite-element modelling of the structure, a simple-to-use spreadsheet interface allows the non-experienced used to perform analysis. To provide an example, a small building made of cross-laminated timber has been analysed regarding its steady-state response to time-harmonic excitation on a floor. The paper demonstrates how representative acceleration levels can be achieved at a low computational cost

Optimal Risk Taking with Flexible Income

We study the portfolio selection problem of an investor who can optimally exert costly effort for more income. The possibility of generating more income, if necessary, increases the risk-taking appetite of the investor. We find the optimal allocation to the risky security as a proportion of financial wealth and as a proportion of the total wealth, defined as the combination of the financial wealth and the human capital of the investor. When the investor's objective is the maximization of the terminal wealth, we show that the optimal allocation to the risky security is a hump-shaped function of the investment horizon. However, when the investor maximizes utility from intertemporal consumption, the optimal allocation in the risky security is a constant proportion of the total wealth of the investor.utility maximization, optimal portfolio selection, intertemporal consumption, optimal effort