Search results for "Change"

Atmospheric circulation modulates the spatial variability of temperature in the Atlantic-Arctic region

2019

International audience; The Arctic region has experienced significant warming during the past two decades with major implications on the cryosphere. The causes of Arctic amplification are still an open question within the scientific community, attracting recent interest. The goal of this study is to quantify the contribution of atmospheric circulation on temperature variability in the Atlantic–Arctic region at decadal to intra‐annual timescales from 1951 to 2014. Daily 20th Century reanalyses geopotential height anomalies at 500 hPa were clustered into different weather regimes to assess their contribution to observed temperature variability. The results show that in winter, 25% of the warm…

Les types de temps associés aux risques d’inondations et d’érosions en Camargue : éléments de diagnostic et de prospectives pour le 21e siècle (1993-…

2010

Les fortes surcotes marines et les fortes vagues sont les principaux aléas météo-marins associés aux risques de submersion et d’érosion du littoral camarguais. Sur la période 1993-2002, une forte fréquence mensuelle de très hautes surcotes marégraphiques est généralement associée à une forte fréquence de très hautes vagues. Ces deux phénomènes locaux se produisent principalement lorsqu'une dépression autour du Golfe de Gascogne est associée à des hautes pressions sur l’Europe Centrale. La fréquence mensuelle de ce type de temps nous renseigne sur la probabilité d’occurrence de fortes surcotes marégraphiques et vagues en Camargue. Au 21e siècle, la fréquence du type de temps associé aux plus…

The linguistic construction of confirmation niches in online comment sequences

2018

This study starts from the consideration that new media are platforms where communication and language are re-negotiated to adapt new frames (e.g. new politeness, multimodal exchanges) and, in particular, that fora are participatory frameworks, that represent a mined engagement in writing practices (Stommel and Koole, 2010). Discussions are organised as multiparty conversations on several topics, written by participants (i.e website users accessing a parenting forum) at different levels of expertise about health issues (mostly earned through their experience of parenthood; Kata, 2010). the challenge in this paper is : 1) to study asynchronous forum as a talk-in -interaction venue, where seq…

Asking for medical help by posting on the net: genre, functions and ethical issues

2014

On the basis of the growing of the number of sites related to health issues and online conversation, statistical research tend to acknowledge that the communication practices of health message boards have significant roles to play in the era of online counseling (Anderson, 2003; Kim & Yoon, 2011; Mulholland, 1999; Eysenbach and Diepgen 1999; O'Connor and Johanson 2000; Shuyler and Knight 2003; Gooden and Winefield 2007). However, one of the main worries concerning these spaces has been the uncontrolled information that is provided by users with no defined roles and who do not/cannot take responsibility for what they say. Previous studies were intended to explore how people discussing health…

The influence of ENSO on South Africa winter rainfall

2011

International audience; We analysed the relationship between El Niño Southern Oscillation (ENSO) and South Africa austral winter rainfall using a 682 raingauges daily rainfall database documenting the period 1950-1999. The May, June and July (MJJ) seasonal rainfall amount shows a positive correlation with the Niño3.4 index that becomes significant since the mid 70's. Wet spells properties (length, frequency and intensity) at the raingauge scale indicate that high (low) MJJ seasonal rainfall amounts recorded during El Niño (La Niña) events are the result of longer (shorter) wet spells in the Cape Town area and more (less) frequent wet spells north of 33°S. Wet spells with daily rainfall amou…

The Trope of Sight in North American Whiteness Studies

2017

The trope of sight has been the central metaphor in North American whiteness studies sińce its very inception, that is, already before whiteness studies emerged as a separate field of study. The centrality of the trope stems not only ffom a particular applicability of the sight metaphor to render subject-object relations, but also ffom the unique presence of “sight” in the very relations between racial groups in the United States, in particular Alfican Americans, and whites. Originally, minorities were cast as objects of the gaze, while white people as subjects of the gaze, exercising the power to look, survey and pass judgment. Apart ffom exposing practices of looking employed by whites, w…

Survival of non-morphologically formed words

1999

Inspiriting Innovation: The Effects of Leader-Member Exchange (LMX) on Innovative Behavior as Mediated by Mindfulness and Work Engagement

2021

Continuous innovation has become a key to gaining a sustainable competitive advantage for organizations in the 21st century. By focusing on the underlying mechanisms (i.e., mindfulness and work engagement) by which it works, this study addresses the quality of leader–member relationships and their relevance for innovation in the workplace. Using a sample of 210 employees from 17 Spanish companies, a two-wave longitudinal design evaluated the mediational roles of mindfulness and engagement between leader–member exchange (LMX) quality and innovative work behavior (IWB) in an organizational context. Over the course of a year, two questionnaires were administered to measure LMX quality, mindful…

Tiimit muuttuvassa työelämässä

2014

Tutkimuksessa selvitettiin, miten tiimin jäsenet ovat kokeneet tiimien ja tiimityön muutokset sekä työelämän muutosten heijastumisen tiimityöhön. Tutkimus kohdistui eri aloilla työskenteleviin suomalaisiin, jotka ovat työskennelleet alallaan vähintään kymmenen vuotta. Laadullinen tutkimus toteutettiin avoimin haastatteluin, joihin osallistui yhteensä yksitoista miestä ja naista. Aineisto analysoitiin teemoittelemalla ja etsimällä aineistosta sekä tyypillisiä että tyypillisestä poikkeavia käsityksiä. Osoittautui, että työelämän koettiin muuttuneen monin tavoin; käsityksissä työn kuormittavuus, muutostahti, työntekijän asema, teknologiavälitteisyys, työn arvot ja työn fokus olivat jollain tav…

The impact of various cations on the sorption of manganese in the thallus of freshwater algae Spirogyra sp. and sea algae Palmaria palmata

2014

Glony ze względu na występowanie w bardzo zróżnicowanych warunkach i dużą odporność na czynniki fizykochemiczne należą do pionierów zasiedlających nowe środowiska, a ich właściwości sorpcyjne są wykorzystywane w biomonitoringu i remediacji wód. Wydajność procesu sorpcji metali ciężkich na glonach wykorzystywanych do badań in situ uzależniona jest od czynników abiotycznych, m.in. od składu chemicznego wody. Do badań wykorzystano słodkowodne glony Spirogyra sp., które w warunkach laboratoryjnych eksponowano w roztworach chlorku manganu o różnym udziale innych kationów, m.in. metali ciężkich i makroelementów. Wykazano, że niektóre metale ciężkie mogą desorbować mangan związany powierzchniowo n…