in the editorial published in this journal, daniels and colleagues argue that his and sabin’s accountability for reasonableness (a4r) framework should be used to handle ethical issues in the health technology assessment (hta)-process, especially concerning fairness. in contrast to this suggestion, it is argued that such an approach risks suffering from the irrrelevance or insufficiency they war...

advancements in different field of medicine have given rise to complex ethical dilemmas in clinical practice. the more the clinicians are sensitized to ethical problems and familiar with ethical decision-making, the more they can value professionalism in their practice. the current paper is designed to emphasize physicians to think ethically in the field of internal medicine and endocrinology. ...

Erosion in the first year after a wildfire can be up to three orders of magnitude greater than the erosion from undisturbed forests. To mitigate potential postfire erosion, various erosion control treatments are applied on highly erodible areas with downstream resources in need of protection. Because postfire erosion rates generally decline by an order of magnitude for each year of recovery, ef...

Dynamic change in soil erosion is an important focus of regional ecological restoration research. Here, the dynamic changes of soil erosion and its driving forces in the Dahei Mountain ecological restoration area of northern China were analyzed by LANDSAT TM remote sensing captured via geographic information system (GIS) technologies during three typical periods in 2004, 2008 and 2013. The resu...

The freeze-thaw (FT) erosion is a type of soil erosion like water erosion and wind erosion. Limited by many factors, the grading evaluation of soil FT erosion quantities is not well studied. Based on the comprehensive analysis of the evaluation indices of soil FT erosion, we for the first time utilized the sensitivity of microwave remote sensing technology to soil moisture for identification of...

background: local ethical committees in medical sciences in iran were established in 1999 in order to assess and evaluate the observance of ethical standards throughout the universities and research centers. the purpose of this study is to analyze the situation of local ethical committees in order to develop research ethics guideline. methods: for this cross-sectional study which has been condu...

The modes of erosion-corrosion are diverse and may vary from being "erosiondominated", where erosion of metal is the dominant process, to "corrosion-dominated", where erosion of oxide scale is the dominant process. The intermediate situation in which erosion of transient oxide is the predominant process is termed "erosion-corrosion-dominated" and describes the regime in which continual formatio...

This study focuses on the numerical modelling of concentrated leak erosion of a cohesive soil by a turbulent flow in axisymmetrical geometry, with application to the Hole Erosion Test (HET). The numerical model is based on adaptive remeshing of the water/soil interface to ensure accurate description of the mechanical phenomena occurring near the soil/water interface. The erosion law governing t...

[1] We have determined the chemical erosion yields for fifteen watersheds in New Zealand, ranging in size from 12.2 to 2928 km. These rates, coupled with previously measured physical erosion yields, allow us to compare these two modes of landscape denudation. The physical erosion yields are some of the highest measured in the world. Although in most instances the chemical erosion yields are onl...