Search results for "Critical"

The formation, properties and impact of secondary organic aerosol: Current and emerging issues

2009

Hallquist, M. Wenger, J. C. Baltensperger, U. Rudich, Y. Simpson, D. Claeys, M. Dommen, J. Donahue, N. M. George, C. Goldstein, A. H. Hamilton, J. F. Herrmann, H. Hoffmann, T. Iinuma, Y. Jang, M. Jenkin, M. E. Jimenez, J. L. Kiendler-Scharr, A. Maenhaut, W. McFiggans, G. Mentel, Th. F. Monod, A. Prevot, A. S. H. Seinfeld, J. H. Surratt, J. D. Szmigielski, R. Wildt, J.; Secondary organic aerosol (SOA) accounts for a significant fraction of ambient tropospheric aerosol and a detailed knowledge of the formation, properties and transformation of SOA is therefore required to evaluate its impact on atmospheric processes, climate and human health. The chemical and physical processes associated wit…

Exergaming Experiences of Older Adults: A Critical Incident Study

2019

Exergaming is a form of digital gaming requiring physical effort from the player. There has been a growing interest towards exergaming in academia. However, only a very limited number of exergaming studies have given a voice to older adults and investigated their experiences. This study investigates what kinds of exergaming experiences are perceived as the most meaningful ones among older adults (referred in this study as people over 50 years of age). That is, the experiences which they perceive or remember as “unusually positive or negative”. To meet this purpose, this study takes a qualitative approach and uses the critical incident technique, a well-established technique to collect and c…

Ancestors of two-spirits: representations of native American third-gender males in historical documentation : a critical discourse analysis in anthro…

2005

Behind the Cosmo-girl : Women’s representations and the brand of Cosmopolitan magazine

2009

 Kriittisen diskurssintutkimuksen lähtökohta on ajatus kielestä todellisuutta ja kulttuurisia arvoja muokkaavana ja uusintavana välineenä. Siksi totuttuihin puhetapoihin eli diskursseihin tulee kiinnittää huomiota, jos halutaan muuttaa yhteiskunnan epätasa-arvoa tuottavia rakenteita tai nostaa näkyville erilaisiin ihmisryhmiin liitettyjä piileviä oletuksia. Tämän tutkimuksen tarkoitus on lisätä tietoa kulttuurisista naisrepresentaatioistamme kriittisen diskurssintutkimuksen metodeja hyödyntäen. Valitsin tutkittavaksi aineistokseni kaksi artikkelia Cosmopolitanista. Pyrin tuomaan uuden näkökulman naistenlehtien analyysiin vertaamalla artikkeleista löytyvää naiskuvaa Cosmopolitanin imagoon ny…

The role of lactate besides the lactic acidosis

2013

Lactic acidosis (LA) is the most common form of metabolic acidosis defined by values of lactate greater than 5 mmol / l and by a pH <7.34. The pathogenesis of LA involves hypoxic (type A) and non hypoxic (type B) causes which are often coexisting. Lactic acidosis is usual in hospitalized population especially in subjects in intensive care units, in which lactate levels on admission could be predictors of mortality even in the absence of organ dysfunction or shock. The outcome is mainly dependent on the cardiovascular effects of acidosis. In subjects with cardiogenic shock, the increased lactate/pyruvate ratio, detectable at onset, is correladed with mortality. An early assessment of blood a…

Beyond life-skills: talented athletes, existential learning and (Un)learning the life of an athlete

2022

Following developments in educational discourse more broadly, learning discourses in youth sport have been shaped by outcome-based and instrumental goals of developing useful life-skills for ‘successful’ lives. There is, however, a need to expand such traditional understandings of sport-based youth development, which we undertook by exploring existential learning in sport through encountering discontinuity. We conducted in-depth qualitative research with 16 Finnish athletes (seven men/nine women, aged 19–20), five of whom had recently disengaged from the athlete development pathway. In the interviews, we used creative non-fiction vignettes to invite reflections on learning experiences in sp…

Towards a digital model to edit the different paratextuality levels within a textual tradition

2008

In the textual tradition of a literary work, our sources (manuscripts, printed books etc.) commonly bear, together with the "main text", different kinds of "paratexts" commenting on it (including interlinear annotations, glosses, scholia, footnotes, modern scholarly introductions and commentaries, and many others). This article proposes a unified model for a document-based digital critical edition including both the 'main texts' and the 'paratexts' as they appear in different single sources. The problematic aspects of such an "enlarged" digital edition are discussed, including the relations between the different 'paratexts' and the 'main text' they refer to 'within each single textual sourc…

Comparative effectiveness of helicopter emergency medical services compared to ground emergency medical services

2013

Physician-staffed helicopter emergency medical services (HEMS) are a well-established component of prehospital trauma care in Germany. Reduced rescue times and increased catchment area represent presumable specific advantages of HEMS. In contrast, the availability of HEMS is connected to a high financial burden and depends on the weather, day time and controlled visual flight rules. To date, clear evidence regarding the beneficial effects of HEMS in terms of improved clinical outcome has remained elusive.Traumatized patients (Injury Severity Score; ISS≥9) primarily treated by HEMS or ground emergency medical services (GEMS) between 2007 and 2009 were analyzed using the TraumaRegister DGU® o…

Design of PNIPAAM covalently grafted on halloysite nanotubes as a support for metal-based catalysts

2016

A thermo-responsive polymer such as poly(N-isopropylacrylamide) (PNIPAAM) was covalently grafted on the external surface of halloysite nanotubes (HNTs) by means of microwave irradiation. This nanomaterial was used as a support and stabilizer for palladium nanoparticles. The obtained HNT–PNIPAAM/PdNPs was characterized by means of TGA, SEM, EDS and TEM analyses. The palladium content of the catalyst was estimated to be 0.4 wt%. The stability of the catalytic material at different temperatures (below and above the PNIPAAM lower critical solution temperature) was tested in the Suzuki reaction under microwave irradiation. In addition, TEM analysis after five consecutive runs was performed. The …

EPR DOSIMETRY IN A MIXED NEUTRON AND GAMMA RADIATION FIELD

2004

Suitability of Electron Paramagnetic Resonance (EPR) spectroscopy for criticality dosimetry was evaluated for tooth enamel, mannose and alanine pellets during the 'international intercomparison of criticality dosimetry techniques' at the SILENE reactor held in Valduc in June 2002, France. These three materials were irradiated in neutron and gamma-ray fields of various relative intensities and spectral distributions in order to evaluate their neutron sensitivity. The neutron response was found to be around 10% for tooth enamel, 45% for mannose and between 40 and 90% for alanine pellets according their type. According to the IAEA recommendations on the early estimate of criticality accident a…