Search results for "Core"
showing 10 items of 1999 documents
Interannual variability of Greenland winter precipitation sources: 2. Effects of North Atlantic Oscillation variability on stable isotopes in precipi…
2008
[1] A new Lagrangian moisture source diagnostic is applied to identify the atmospheric conditions relevant for the fractionation of stable water isotopes during evaporation over the ocean and subsequent transport to Greenland. Northern Hemisphere winter months with positive and negative North Atlantic Oscillation (NAO) index are studied on the basis of ERA-40 reanalysis data. Diagnosed moisture transport conditions are supplied to a Rayleigh-type isotope fractionation model to derive estimates for the isotopic composition of stable isotopes in winter precipitation on the Greenland plateau for the two NAO phases. Because of changes in atmospheric circulation, moisture source locations for pr…
Interannual variability of Greenland winter precipitation sources: Lagrangian moisture diagnostic and North Atlantic Oscillation influence
2008
[1] We present a new Lagrangian diagnostic for identifying the sources of water vapor for precipitation. Unlike previous studies, the method allows for a quantitative demarcation of evaporative moisture sources. This is achieved by taking into account the temporal sequence of evaporation into and precipitation from an air parcel during transport, as well as information on its proximity to the boundary layer. The moisture source region diagnostic was applied to trace the origin of water vapor for winter precipitation over the Greenland ice sheet for 30 selected months with pronounced positive, negative, and neutral North Atlantic Oscillation (NAO) index, using the European Centre for Medium-…
Optical properties of deep glacial ice at the South Pole
2006
We have remotely mapped optical scattering and absorption in glacial ice at the South Pole for wavelengths between 313 and 560 nm and depths between 1100 and 2350 m. We used pulsed and continuous light sources embedded with the AMANDA neutrino telescope, an array of more than six hundred photomultiplier tubes buried deep in the ice. At depths greater than 1300 m, both the scattering coefficient and absorptivity follow vertical variations in concentration of dust impurities, which are seen in ice cores from other Antarctic sites and which track climatological changes. The scattering coefficient varies by a factor of seven, and absorptivity (for wavelengths less than ∼450 nm) varies by a fact…
Podstawowe samowartościowanie - walidacja polskiej wersji skali do pomiaru Core Self-Evaluations
2017
Praca przedstawia walidację polskiej wersji skali do pomiaru podstawowego samowartościowania (Core Self-Evaluations – CSES; Judge, Erez, Bono i Thorensen, 2003). Podstawowe samowartościowanie to poglądy danej osoby, dotyczące jej skuteczności, zdolności, wiary we własne siły i pozytywnego nastawienia do siebie i świata. Koncepcja skali jest konstruktem opartym o indywidualne zmienne dyspozycyjne, często badane w kontekście organizacyjnym. Są to: samoocena, wewnętrzne umiejscowienie kontroli, zgeneralizowana samoskuteczność oraz pozytywna afektywność. Na podstawie danych z pięciu badań przeprowadzonych w latach 2014-2016, na łącznie n=3207 osób, w większości pracujących, udało się potwierdzi…
Actitudes hacia el alumnado con discapacidad en educación física: validación de la EAADEF-EP a la etapa de educación primaria
2020
La investigación que aborda la inclusión del alumnado con discapacidad en educación física (EF) se presenta como un reto educativo en la actualidad. El objetivo de este estudio fue validar la Escala de Actitud hacia el Alumnado con Discapacidad en Educación Física (EAADEF) de Íñiguez-Santiago et al. (2017) a la etapa de educación primaria (EAADEF-EP). Participaron 465 estudiantes (rango 9-13 años) que cursaban 4º, 5º y 6º curso de la etapa de educación primaria obligatoria (EPO). Se confirmaron unos índices de ajuste adecuados para la adaptación de la EAADEF a EPO, mostrándose la estructura factorial invariante respecto al curso, género, el contacto previo con familiares o amigos con discap…
An Easy Assessment of Frailty at Baseline Independently Predicts Prognosis in Very Elderly Patients With Acute Coronary Syndromes.
2017
Background: Information about the impact of frailty in patients with acute coronary syndromes (ACS) is scarce. No study has assessed the prognostic impact of frailty as measured by the FRAIL scale in very elderly patients with ACS. Methods: The prospective multicenter LONGEVO-SCA registry included unselected patients with ACS aged 80 years or older. A comprehensive geriatric assessment was performed during hospitalization, including frailty assessment by the FRAIL scale. The primary endpoint was mortality at 6 months. Results: A total of 532 patients were included. Mean age was 84.3 years, 61.7% male. Most patients had positive troponin levels (84%) and high GRACE risk score values (mean 16…
A link between ectoparasite infection and susceptibility to bacterial disease in rainbow trout
2006
Rainbow trout, Oncorhynchus mykiss, were infected concomitantly with Argulus coregoni and Flavobacterium columnare and their survival was compared with that of fish infected with either the parasite or the bacterium alone. The mortality of fish challenged with A. coregoni was negligible while infection with F. columnare alone led to significantly lower survival. However, compared with single infections, the mortality was significantly higher and the onset of disease condition was earlier among fish, which were concomitantly infected by A. coregoni and F. columnare. This data presents, for the first time, experimental support for the hypothesis that an ectoparasite infection increases suscep…
La misurazione della performance dei distretti turistici: una proposta
2014
Il presente lavoro si propone di affrontare il tema della valutazione di impatto territoriale dell'esperienza distrettuale.
Verso la rappresentazione e valutazione dello sviluppo delle aziende : i limiti dell'informativa economico-finanziaria e il contributo di alcuni appr…
2009
Firms are dynamic entities in continuous change. This dynamism can lead to an improvement or worsening of the firm. Only in the first situation we can say that a firm is developing. The notion of firm's development does not have in literature an univocal interpretation and for this reason the first aim of the article is to illustrate an interpretation for a better understanding of this notion, which remains incomplete without appropriate instruments for the representation and evaluation of firm's development. The main purpose of this article is to reflect upon the manner to represent and to value this complex phenomenon. The analysis highlights, on the one hand, the limits of the financial …
Comparaison Balanced Scorecard - Navigator
2008
Cet article a pour objectif de décrire et de comparer deux modèles de tableaux de bord stratégique : le modèle Anglo-Saxon, connu sous le nom de Balanced Scorecard et le modèle Scandinave, dont l'application la plus connue a été développé au sein de l'entreprise Skandia sous le nom de Navigator.