Search results for " tests"

The use of doping and integrators in not professionals athletes: epidemiological study

2005

Investigation and control of a Norovirus outbreak of probable waterborne transmission through a municipal groundwater system

2014

During March 2011 an outbreak of gastroenteritis occurred in Santo Stefano di Quisquina, Agrigento, Sicily, Italy. Within two weeks 156 cases were identified among the 4,965 people living in the municipality. An epidemiological investigation was conducted to characterize the outbreak and target the control measures. A case was defined as a person developing diarrhea or vomiting during February 27–March 13, 2011. Stool specimens were collected from 12 cases. Norovirus (NoV) genotype GII.4 variant New Orleans 2009 was identified in stool samples from 11 of 12 cases tested (91.7%). Epidemiological investigations suggested a possible association with municipal drinking water consumption. Water …

Revista de educación

2001

Resumen basado en el de la publicación. Incluye anexo Se propone un test de opción múltiple que permita determinar de manera fiable las concepciones sobre el espacio vacío de estudiantes de distintos niveles académicos de la enseñanza no universitaria. En primer lugar, se define el contenido conceptual que se va a analizar mediante un listado de proposiciones. Tras una prueba piloto con la primera versión del test y un análisis de consistencia interna, se establece su versión definitiva con nueve ítems de opción múltiple. Por últimol el test se administra a un total de 339 estudiantes de edades comprendidas entre 11 y 17 años, proporcinando un coeficiente de fiabilidad del 0.67 (Fórmula nõ …

The determination of haemoglobin as cyanhaemiglobin or as alkaline haematin D-575. Comparison of method-related errors.

1989

In order to compare the accuracy of haemoglobin (Hb) determination methods, the commonly used cyanhaemiglobin (HiCN) method and the recently developed alkaline haematin D-575 (AHD) method (R. Zander, W. Lang & H. U. Wolf (1984) Clin. Chim. Acta 136, 83-93; H. U. Wolf, W. Lang & R. Zander (1984) Clin. Chim. Acta 136, 95-104) were tested with respect to method-related errors such as plasma, cell, and Hb errors. Both methods yield a series of more or less significant errors which generally lead to an overestimation of the Hb concentration in the order of 1%. However, in all three cases of plasma errors, i.e. normal plasma error, plasma error in lipaemic blood, and plasma error in bilirubinaemi…

TESTING THE HYPOTHESIS OF AN EFFICIENT MARKET IN TERMS OF INFORMATION – THE CASE OF THE CAPITAL MARKET IN ROMANIA DURING RECESSION

2010

This paper is trying to test the hypothesis of efficient market (EMH Efficient Market Hypothesis), the case of capital market in Romania during the economic financial crisis. According to the purpose in view our research is aiming at testing the hypothesis of random walk of stock exchange indexes BET, BET-C, BET_FI of Bucharest Stock Exchange. In this respect we will enforce statistic tests to see if the capital market in Romania is efficient in a weak form during this period.

TESTING INFORMATIONAL EFFICIENCY: THE CASE OF U.E. AND BRIC EMERGENT MARKETS

2012

Empirical finance has brought together a considerable number of studies in determining the market efficiency in terms of information in the case of an emerging financial market. Conflicting results have been generated by these researches in efficient market hypothesis (EMH), so efficiency tests in the emerging financial markets are rarely definitive in reaching a conclusion about the existence of informational efficiency. This paper tests weak-form market efficiency of eight emerging markets: four U.E emerging markets: Romania, Hungary, Czech Republic, Slovakia, Estonia and BRIC emerging markets: Brazil, Russia, India and China. The random walk hypothesis of stock exchange indices is tested…

Latvijas valsts parāda un ekonomiskās izaugsmes sakarības

2016

Bakalaura darbs "Latvijas valsts parāda un ekonomiskās izaugsmes sakarības" izstrādāts ar mērķi izvirzīt priekšlikumus fiskālās politikas veidotājiem un nozares pētniekiem. Bakalaura darbā tiek apskatīti valsts parāda teorētiskie aspekti un ekonomiskās izaugsmes teorijas, apkopoti līdz šim veiktie pētījumi par valsts parāda un ekonomiskās izaugsmes sakarībām, tiek izanalizēti Latvijas valsts parāda un ekonomiskās izaugsmes procesi dinamikā un ES kontekstā, kā arī veikts pētījums par Latvijas valsts parāda un ekonomiskās izaugsmes sakarībām, balstoties uz kuru, tiek izdarīti secinājumi un izvirzīti priekšlikumi fiskālās politikas veidotājiem un nozares pētniekiem.

Muon-electron lepton-flavor-violating transitions : Shell-model calculations of transitions in 27Al

2018

In this paper we present the results of large-scale shell-model calculations of muon-to-electron lepton-flavorviolating transitions for the case of the target nucleus 27Al. We extend the previous shell-model calculations, done in the sd model space, by including also the p orbitals in order to see whether the negative-parity states produce any significant effect in the conversion rate. The analysis of the results shows the dominance of coherent transitions mediated by isovector operators and going by the ground state of the target, with practically null influence of excited positive- or negative-parity states. peerReviewed

Analysis of light neutrino exchange and short-range mechanisms in 0νββ decay

2020

Neutrinoless double beta decay (0νββ) is a crucial test for lepton number violation. Observation of this process would have fundamental implications for neutrino physics, theories beyond the Standard Model and cosmology. Focusing on so-called short-range operators of 0νββ and their potential interplay with the standard light Majorana neutrino exchange, we present the first complete calculation of the relevant nuclear matrix elements, performed within the interacting boson model (IBM-2). Furthermore, we calculate the relevant phase space factors using exact Dirac electron wave functions, taking into account the finite nuclear size and screening by the electron cloud. The obtained numerical r…

Intra-individual variability in TSH levels of healthy women during the first half of pregnancy

2017

TSH is the parameter most widely accepted to assess thyroid function, especially in pregnant women. The aim of this current study was to analyze intra-individual changes in TSH during the first half of pregnancy in women with TSH levels higher than 2.5mIU/L in early pregnancy.An observational, prospective study was conducted on 243 healthy pregnant women in the first trimester of pregnancy. Thyroid function was assessed by testing TSH and free T4 levels. A subgroup of women with TSH levels2.5mIU/L underwent additional tests (TSH, free T4, peroxidase antibodies). Information on dietary iodine intake and/or iodine supplements was also recorded.Mean TSH level was 1.89mIU/L (range 0.024-6.48mIU…