Search results for "trend"

Trends in Medically Attended Injuries in Czech Adolescents

2017

The academic field of Sport Management: past, present and future

2019

The industry of sport currently has a big impact on our society, in areas as diverse as economics, mass media, health or politics. As a result of this new trend, a specific academic field, identified as ‘Sport Management’ has emerged in the past years. A study field that appears to have experienced a substantive growth over a short period of time. This paper has conducted a review on the relevant aspects that have shaped the identity of Sport Management as an academic field. For that purpose, documentary sources have been used as reference with a main focus in those produced by relevant authors of the Sport Management field, granting special attention to the theoretical construction of the …

The role of humidity in associations of high temperature with mortality: A multicountry, multicity study

2019

BACKGROUND: There is strong experimental evidence that physiologic stress from high temperatures is greater if humidity is higher. However, heat indices developed to allow for this have not consistently predicted mortality better than dry-bulb temperature. OBJECTIVES: We aimed to clarify the potential contribution of humidity an addition to temperature in predicting daily mortality in summer by using a large multicountry dataset. METHODS: In 445 cities in 24 countries, we fit a time-series regression model for summer mortality with a distributed lag nonlinear model (DLNM) for temperature (up to lag 3) and supplemented this with a range of terms for relative humidity (RH) and its interaction…

Organization of intensive cardiac care units in Europe: Results of a multinational survey

2020

Background: The present survey aims to describe the intensive cardiac care unit organization and admission policies in Europe. Methods: A total of 228 hospitals (61% academic) from 27 countries participated in this survey. In addition to the organizational aspects of the intensive cardiac care units, including classification of the intensive cardiac care unit levels, data on the admission diagnoses were gathered from consecutive patients who were admitted during a two-day period. Admission policies were evaluated by comparing illness severity with the intensive cardiac care unit level. Gross national income was used to differentiate high-income countries (n=13) from middle-income countries…

The Expansion of English-medium Instruction in the Nordic Countries.Can Top-Down University Language Polices Encourage Bottom-up Disciplinary Literac…

2015

Recently, in the wake of the Bologna Declaration and similar internationalinitiatives, there has been a rapid increase in the number of university courses and programmestaught through the medium of English. Surveys have consistently shown theNordic countries to be at the forefront of this trend towards English-medium instruction(EMI). In this paper, we discuss the introduction of EMI in four Nordic countries (Denmark,Finland, Norway and Sweden). We present the educational setting and the EMIdebate in each of these countries and summarize relevant research findings. We then makesome tentative suggestions for the introduction of EMI in higher education in othercountries. In particular, we are…

Time Series Momentum in the US Stock Market: Empirical Evidence and Theoretical Implications

2020

There is much controversy in the academic literature on the presence of short-term trends in financial markets and the trend-following strategy's profitability. This paper restricts its attention to the study of time-series momentum (TSMOM) in the US stock market. The paper aims to suggest answers to several important questions regarding TSMOM and to explain the existing controversy. Our answer to the question, whether short-term trends exist, is strongly affirmative. For the first time, we suppose that the returns follow a p-order autoregressive process with p>1 and evaluate this process's parameters. Fairly accurate knowledge of the momentum generating process allows us to provide analyti…

One hundred and fifty years of ornithology in Sicily, with an unknown manuscript by Joseph Whitaker

2021

A new complete check-list of Birds of Sicily is presented in this paper, with a comparison with previous lists for a period of one hundred and fifty years. Further, an unknown manuscript by Joseph Whitaker “Birds of Sicily”, dated back to ca. 1920, has been transcribed and is here presented integrally. Thus, lists of birds here presented have been separated as follows: i) Doderlein (1869–1874); ii) Whitaker (1920); iii) Iapichino & Massa (1989), Lo Valvo et al. (1993) iv) Corso (2005), Ientile & Massa (2008); v) 2010–2020: Massa et al. (2015) and personal observations; vi) long-term trend: personal observations. Overall, 437 species are listed. Out of 283 species regularly present i…

Problemi di giurisdizione nel contrasto al traffico di migranti via mare

2018

I trafficanti di esseri umani si avvalgono con sempre più insistenza di ben collaudati protocolli operativi. Questi ultimi consentono loro di sottrarsi alla giurisdizione penale italiana che non si radica qualora – in ossequio ai criteri di cui all’art. 6 c.p.ed in conformità alla Convenzione sull’Alto Mare– l’azione illecita avvenga in acque internazionali.Così, premesse alcune linee concettuali sui limiti spaziali alla efficacia della legge penale, l’indagine si sofferma sulla soluzione ermeneutica offerta dallaCassazione che, apparentemente in modo sbrigativo e per esigenze di effettività della risposta punitiva, ha fatto ricorso alla controversa figura dell’autore mediato per sanzionare condott…

FRACTALITY EVIDENCE AND LONG-RANGE DEPENDENCE ON CAPITAL MARKETS: A HURST EXPONENT EVALUATION

2014

Since the existence of market memory could implicate the rejection of the efficient market hypothesis, the aim of this paper is to find any evidence that selected emergent capital markets (eight European and BRIC markets, namely Hungary, Romania, Estonia, Czech Republic, Brazil, Russia, India and China) evince long-range dependence or the random walk hypothesis. In this paper, the Hurst exponent as calculated by R/S fractal analysis and Detrended Fluctuation Analysis is our measure of long-range dependence in the series. The results reinforce our previous findings and suggest that if stock returns present long-range dependence, the random walk hypothesis is not valid anymore and neither is…

Multi-agent-based Order Book Model of financial markets

2006

We introduce a simple model for simulating financial markets, based on an order book, in which several agents trade one asset at a virtual exchange continuously. For a stationary market the structure of the model, the order flow rates of the different kinds of order types and the used price time priority matching algorithm produce only a diffusive price behavior. We show that a market trend, i.e. an asymmetric order flow of any type, leads to a non-trivial Hurst exponent for the price development, but not to "fat-tailed" return distributions. When one additionally couples the order entry depth to the prevailing trend, also the stylized empirical fact of "fat tails" can be reproduced by our …