Search results for " method"

A coupled discontinuous Galerkin-Finite Volume framework for solving gas dynamics over embedded geometries

2021

Author(s): Gulizzi, Vincenzo; Almgren, Ann S; Bell, John B | Abstract: We present a computational framework for solving the equations of inviscid gas dynamics using structured grids with embedded geometries. The novelty of the proposed approach is the use of high-order discontinuous Galerkin (dG) schemes and a shock-capturing Finite Volume (FV) scheme coupled via an $hp$ adaptive mesh refinement ($hp$-AMR) strategy that offers high-order accurate resolution of the embedded geometries. The $hp$-AMR strategy is based on a multi-level block-structured domain partition in which each level is represented by block-structured Cartesian grids and the embedded geometry is represented implicitly by a…

Comparison between different mathematical methods to calcolate insulin resistance in women with polycystic ovary syndrome (PCOS)

2003

Monitoring a meat-free pledge with smartphones:An experimental study

2020

Pledges are a popular strategy to encourage meat reduction, though experimental studies of their efficacy are lacking. Three-hundred and twenty-five participants from three different countries (UK, Germany, Australia) were randomly assigned to pledge 28 days meat-free or not, and their behavior was tracked via smartphones. Participants answered daily surveys regarding their eating behavior, meat cravings, and shared photos of their meals. Baseline data was collected prior to the pledge, after the 28 days, and one-month post-intervention. Participants assigned to the pledge condition ate less meat across the 28 days, compared to control participants. Meat reductions, observed at outtake, did…

Influencia de la velocidad de nombramiento en el inicio de la lectura

2016

Abstract:The analysis of the cognitive processes that are the basis of reading skill has detected some predictors of the development of phonological-orthographic skills necessary in learning it and has identified the naming speed as a good predictor of deficit related to reading difficulties. The objective of this study is to analyze the relationship between naming speed and initial learning of literacy through the analysis of aspects such as the influence of the reading habits, age of onset of literacy or participation in specific learning methods as Kumon. The study involved 289 children aged 4 to 6 years. Results showed naming speed correlates with phonological awareness, predicts readin…

A survey on sleep assessment methods

2018

Purpose A literature review is presented that aims to summarize and compare current methods to evaluate sleep. Methods Current sleep assessment methods have been classified according to different criteria; e.g., objective (polysomnography, actigraphy…) vs. subjective (sleep questionnaires, diaries…), contact vs. contactless devices, and need for medical assistance vs. self-assessment. A comparison of validation studies is carried out for each method, identifying their sensitivity and specificity reported in the literature. Finally, the state of the market has also been reviewed with respect to customers’ opinions about current sleep apps. Results A taxonomy that classifies the sleep detect…

Pulling Harriot Out of Newton’s Shadow: How the Norwegian Outsider Johannes Lohne Came to Contribute to Mainstream History of Mathematics

2016

The focus of this paper is on the peculiarities of Lohne ’s “outsider approach” to the historiography of mathematics and physics. The main thesis is that the circumstances of Lohne ’s outsider position both narrowed down and sharpened the focus of his research, but that he succeeded because he joined the then rising tide of archival based and content oriented internalist research in the history of physics and mathematics and because he was supported by scholars such as D.T. Whiteside and J.E. Hofmann , whose connections to the international community were better than his own. The main conclusions are based on Lohne ’s Nachlass in Oslo and on some other archival sources. In addition Lohne ’s…

Informal situated counselling in a school context†

2008

The institutional regulation of counselling conversations does not always provide optimal conditions for counselling. Many teachers experience that some “normal” conversations develop into conversations which are of a counselling nature. Conversations which resemble counselling can be optimal counselling opportunities. In this paper we describe and develop these counselling conversations, which we call Informal Situated Counselling. †An earlier version of this article has been published in Norsk Pedagogisk Tidsskrift [Journal of Norwegien Pedagogic].

Rethinking exchange and prices

2017

Our monetary economies of production are not based upon relative exchanges described by the standard theory. Money is neither a commodity nor a positive asset; it cannot be exchanged against physical goods and services. It follows that payments do not consist of mutual transfers of commodities. In fact, each producer working for the needs for the community produces wealth for himself. Further, transactions on any markets are absolute exchanges. One of the consequences of this is that market prices do not measure wealth; rather, they are coefficients of redistribution of products.

Was Frank Knight an institutionalist?

2005

This paper critically examines Geoffrey Hodgson's recent provocative claim about Frank Knight as being a member of American institutionalism in the interwar years. In the first section of the paper the authors attempt to provide a definition of institutionalism and to emphasize its meaning from a historiographic point of view. The second and third sections analyze the two main methodological struggles between Knight and the institutionalists, namely, the debate during the early 1020s over the use of instinct theory as an explanation of economic behavior, and the subsequent campaign led by Knight in the late 1920s and early 1930s against the behaviorist wing of American institutionalism à la…

Reading comprehension in French 1st and 2nd grade children: Contribution of decoding and language comprehension

2006

This paper reports a study conducted with French first-grade and second-grade children (mean age: 6;8 and 7;8 respectively). The first aim was to re-examine the Gough and Tunmer’s (1986) Simple View in assessing the specific contribution of decoding ability and language comprehension to reading comprehension. The second one was to analyse the difficulties of children in reading comprehension. Reading and listening comprehension were assessed using both visual and auditory version of the same test. Decoding ability was assessed by means of a nonword reading test. On the basis of reading comprehension scores, skilled and less skilled comprehenders were contrasted, and then two groups of less …