Semi-solid constitutive parameters and failure behavior of a cast AA7050 alloy

Materials innovation institute (www.m2i.nl) research framework, project number M42.5.09340; Norsk Hydro Fond for SINTEF; Modelling assisted INnovation for Aluminum DC Casting process (MINAC

The Edge of Perinatal Viability:Understanding the Dutch Position

Contains fulltext : 231104.pdf (publisher's version ) (Open Access

Incentives for smoking cessation during pregnancy:an ethical framework

INTRODUCTION: Smoking during pregnancy increases the risk of morbidity and mortality of the mother and child. The inability of the unborn child to protect itself, raises the social and academic responsibility to protect the child from the harmful effects of smoking. Interventions including rewards ('incentives') for lifestyle changes are an upcoming trend and can encourage women to quit smoking. However, these incentives can, as we will argue, also have negative consequences, for example the restriction of personal autonomy and encouragement of smoking to become eligible for participation. To prevent these negative consequences, we developed an ethical framework that enables to assess and address unwanted consequences of incentive-based interventions whereby moral permissibility can be evaluated. METHODS: The possible adverse consequences of incentives were identified through an extensive literature search. Subsequently, we developed ethical criteria to identify these consequences based on the biomedical ethical principles of Beauchamp and Childress. RESULTS: Our framework consists of twelve criteria. These criteria concern (i) effectiveness, (ii) support of a healthy lifestyle, (iii) motivational for the target population, (iv) stimulating unhealthy behaviour, (v) negative attitudes, (vi) personal autonomy, (vii) intrinsic motivation, (viii) privacy, (ix) fairness, (x) allocation of incentives, (xi) cost-effectiveness, and (xii) health inequity. Based on these criteria, the moral permissibility of potential interventions can be evaluated. CONCLUSION: Incentives for smoking cessation are a response to the responsibility to protect the unborn child. But these interventions might have possible adverse effects. This ethical framework aims to identify and address ethical pitfalls in order to avoid these adverse effects

The edge of perinatal viability: understanding the Dutch position

The current Dutch guideline on care at the edge of perinatal viability advises to consider initiation of active care to infants born from 24 weeks of gestational age on. This, only after extensive counseling of and shared decision-making with the parents of the yet unborn infant. Compared to most other European guidelines on this matter, the Dutch guideline may be thought to stand out for its relatively high age threshold of initiating active care, its gray zone spanning weeks 24 and 25 in which active management is determined by parental discretion, and a slight reluctance to provide active care in case of extreme prematurity. In this article, we explore the Dutch position more thoroughly. First, we briefly look at the previous and current Dutch guidelines. Second, we position them within the Dutch socio-cultural context. We focus on the Dutch prioritization of individual freedom, the abortion law and the perinatal threshold of viability, and a culturally embedded aversion of suffering. Lastly, we explore two possible adaptations of the Dutch guideline; i.e., to only lower the age threshold to consider the initiation of active care, or to change the type of guideline.Research into fetal development and medicin

Asphaltene multilayer growth in porous medium probed by SANS

Presence of suspended particles such as asphaltene in crude oils could significantly affect the production by means of deposition in porous media especially near the well bore. We investigate this phenomenon using the ability of Small Angle Neutron Scattering technique to probe directly the asphaltene adsorption process in a porous medium at the nanometer length scale under flow conditions. A device based on a quartz tube filled with SiC particles constitute the porous medium in which an asphaltene solution in a mixture of good (toluene)/bad (heptane) solvent is injected under controlled flow. The contrast matching technique enables to match the porous medium scattering contributions and to measure the signal of the deposit. Such a device can be used for curves surface measurements on a setup originally designed for bulk studies and permit thus the direct comparison with measurements on flat surfaces (neutron reflectivity) and indirect adsorption measurements (adsorption isotherm). We show here that asphaltene in good solvent leads to a monolayer whereas addition of bad solvent results in a multilayer growth which is consistent with the deposition behaviour described in the literature

On the limits of viability: toward an individualized prognosis-based approach

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Prenatal counseling for extreme prematurity at the limit of viability: A scoping review

Objectives: To explore, based on the existing body of literature, main characteristics of prenatal counseling for parents at risk for extreme preterm birth.Methods: A scoping review was conducted searching Embase, Medline, Web of Science, Cochrane, CINAHL, and Google Scholar. Results: 46 articles were included. 27 of them were published between 2017 and 2021. More than half of them were conducted in the United States of America. Many different study designs were represented. The following characteristics were identified: personalization, parent-physician relationships, shared decision-making, physician bias, emotions, anxiety, psychosocial factors, parental values, religion, spirituality, hope, quality of life, and uncertainty.Conclusions: Parental values are mentioned in 37 of the included articles. Besides this, uncertainty, shared decision-making, and emotions are most frequently mentioned in the literature. However, reflecting on the interrelation between all characteristics leads us to conclude that personalization is the most notable trend in prenatal counseling practices. More and more, it is valued to adjust the counseling to the parent(s).Practice implications: This scoping review emphasizes again the complexity of prenatal counseling at the limit of viability. It offers an exploration of how it is currently approached, and reflects on how future research can contribute to optimizing it.(c) 2021 The Author(s). Published by Elsevier B.V. CC_BY_4.

Prenatal counseling for extreme prematurity at the limit of viability: A scoping review

OBJECTIVES: To explore, based on the existing body of literature, main characteristics of prenatal counseling for parents at risk for extreme preterm birth. METHODS: A scoping review was conducted searching Embase, Medline, Web of Science, Cochrane, CINAHL, and Google Scholar. RESULTS: 46 articles were included. 27 of them were published between 2017 and 2021. More than half of them were conducted in the United States of America. Many different study designs were represented. The following characteristics were identified: personalization, parent-physician relationships, shared decision-making, physician bias, emotions, anxiety, psychosocial factors, parental values, religion, spirituality, hope, quality of life, and uncertainty. CONCLUSIONS: Parental values are mentioned in 37 of the included articles. Besides this, uncertainty, shared decision-making, and emotions are most frequently mentioned in the literature. However, reflecting on the interrelation between all characteristics leads us to conclude that personalization is the most notable trend in prenatal counseling practices. More and more, it is valued to adjust the counseling to the parent(s). PRACTICE IMPLICATIONS: This scoping review emphasizes again the complexity of prenatal counseling at the limit of viability. It offers an exploration of how it is currently approached, and reflects on how future research can contribute to optimizing it