Diatom abundance and fatty acid composition of ice algae and of Calanus glacialis in samples obtained in 2008 in the eastern Beaufort Sea

The copepod Calanus glacialis plays a key role in the lipid-based energy flux in Arctic shelf seas. By utilizing both ice algae and phytoplankton, this species is able to extend its growth season considerably in these seasonally ice-covered seas. This study investigated the impacts of the variability in timing and extent of the ice algal bloom on the reproduction and population success of C. glacialis. The vertical distribution, reproduction, amount of storage lipids, stable isotopes, fatty acid and fatty alcohol composition of C. glacialis were assessed during the Circumpolar Flaw Lead System Study. Data were collected in the Amundsen Gulf, south-eastern Beaufort Sea, from January to July 2008 with the core-sampling from March to April. The reduction in sea ice thickness and coverage observed in the Amundsen Gulf in 2007 and 2008 affected the life strategy and reproduction of C. glacialis. Developmental stages CIII and CIV dominated the overwintering population, which resulted in the presence of very few CV and females during spring 2008. Spawning began at the peak of the ice algal bloom that preceded the precocious May ice break-up. Although the main recruitment may have occurred later in the season, low abundance of females combined with a potential mismatch between egg production/development to the first feeding stage and phytoplankton bloom resulted in low recruitment of C. glacialis in the early summer of 2008.

Addition of PLA2 to CRP enhances sepsis diagnosis

Letter to the Editor refers to: Fredrikke Christie Knudtzen, Stig Lønberg Nielsen, Kim Oren Gradel, Annmarie Touborg Lassen, Hans Jørn Kolmos, Thøger Gorm Jensen, Pernille Just Vinholt, Court Pedersen, Characteristics of patients with community-acquired bacteremia who have low levels of C-reactive protein (≤20 mg/L), Journal of Infection, Volume 68, Issue 2, February 2014, Pages 149-155

Data compilation on the biological response to ocean acidification: environmental and experimental context of data sets and related literature

The exponential growth of studies on the biological response to ocean acidification over the last few decades has generated a large amount of data. To facilitate data comparison, a data compilation hosted at the data publisher PANGAEA was initiated in 2008 and is updated on a regular basis (doi:10.1594/PANGAEA.149999). By January 2015, a total of 581 data sets (over 4 000 000 data points) from 539 papers had been archived. Here we present the developments of this data compilation five years since its first description by Nisumaa et al. (2010). Most of study sites from which data archived are still in the Northern Hemisphere and the number of archived data from studies from the Southern Hemisphere and polar oceans are still relatively low. Data from 60 studies that investigated the response of a mix of organisms or natural communities were all added after 2010, indicating a welcomed shift from the study of individual organisms to communities and ecosystems. The initial imbalance of considerably more data archived on calcification and primary production than on other processes has improved. There is also a clear tendency towards more data archived from multifactorial studies after 2010. For easier and more effective access to ocean acidification data, the ocean acidification community is strongly encouraged to contribute to the data archiving effort, and help develop standard vocabularies describing the variables and define best practices for archiving ocean acidification data.

(Table 1) Physical oceanography during Lance cruise LA99/2 in the marginal ice zone of the Barents Sea

Zooplankton was studied on eight stations in the marginal ice zone (MIZ) of the Barents Sea, in May 1999, along two transects across the ice edge. On each station, physical background measurements and zooplankton samples were taken every 6 h over a 24 h period at five discrete depth intervals. Cluster analysis revealed separation of open water stations from all ice stations as well as high similarity level among replicates belonging to particular station. Based on five replicates per station, analysis of variance (ANOVA) confirmed significant differences (P < 0.05) in abundances of the main mesozooplankton taxa among stations. Relations between the zooplankton community and environmental parameters were established using redundancy analysis (CANOCO). In total, 55% of mesozooplankton variability within studied area was explained by eight variables with significant conditional effects: depth stratum, fluorescence, temperature, salinity, bottom depth, latitude, bloom situation, and ice concentration. GLM models supported supposition about clear and negative relationship between concentration of Oithona similis, and overall mesozooplankton diversity The analyses showed a dynamic relationship between mesozooplankton distribution and hydrological conditions on short-term scale. Furthermore, our study demonstrated that variability in the physical environment of dynamic MIZ of the Barents Sea has measurable effect on the Arctic pelagic ecosystem.

Source apportionment of PM2.5 in Cork Harbour, Ireland using a combination of single particle mass spectrometry and quantitative semi-continuous measurements

An aerosol time-of-flight mass spectrometer (ATOFMS) was deployed for the measurement of the size resolved chemical composition of single particles at a site in Cork Harbour, Ireland for three weeks in August 2008. The ATOFMS was co-located with a suite of semi-continuous instrumentation for the measurement of particle number, elemental carbon (EC), organic carbon (OC), sulfate and particulate matter smaller than 2.5 μm in diameter (PM2.5). The temporality of the ambient ATOFMS particle classes was subsequently used in conjunction with the semi-continuous measurements to apportion PM2.5 mass using positive matrix factorisation. The synergy of the single particle classification procedure and positive matrix factorisation allowed for the identification of six factors, corresponding to vehicular traffic, marine, long-range transport, various combustion, domestic solid fuel combustion and shipping traffic with estimated contributions to the measured PM2.5 mass of 23%, 14%, 13%, 11%, 5% and 1.5% respectively. Shipping traffic was found to contribute 18% of the measured particle number (20–600 nm mobility diameter), and thus may have important implications for human health considering the size and composition of ship exhaust particles. The positive matrix factorisation procedure enabled a more refined interpretation of the single particle results by providing source contributions to PM2.5 mass, while the single particle data enabled the identification of additional factors not possible with typical semi-continuous measurements, including local shipping traffic.

Seawater carbonate chemistry and biological processes of Mytilus edulis during experiments, 2011

Ocean acidification (OA) resulting from anthropogenic emissions of carbon dioxide (CO2) has already lowered and is predicted to further lower surface ocean pH. There is a particular need to study effects of OA on organisms living in cold-water environments due to the higher solubility of CO2 at lower temperatures. Mussel larvae (Mytilus edulis) and shrimp larvae (Pandalus borealis) were kept under an ocean acidification scenario predicted for the year 2100 (pH 7.6) and compared against identical batches of organisms held under the current oceanic pH of 8.1, which acted as a control. The temperature was held at a constant 10°C in the mussel experiment and at 5°C in the shrimp experiment. There was no marked effect on fertilization success, development time, or abnormality to the D-shell stage, or on feeding of mussel larvae in the low-pH (pH 7.6) treatment. Mytilus edulis larvae were still able to develop a shell in seawater undersaturated with respect to aragonite (a mineral form of CaCO3), but the size of low-pH larvae was significantly smaller than in the control. After 2 mo of exposure the mussels were 28% smaller in the pH 7.6 treatment than in the control. The experiment with Pandalus borealis larvae ran from 1 through 35 days post hatch. Survival of shrimp larvae was not reduced after 5 wk of exposure to pH 7.6, but a significant delay in zoeal progression (development time) was observed.

Kivijalkakauppa kämmenellä – mobiilimarkkinointi kaupunkikeskustojen pienissä erikoisliikkeissä

Internetin ja uusien teknologioiden saavutettavuus missä ja milloin tahansa on taannut niiden pysyvän aseman yhteiskunnassa. Mobiililaitteista on tullut osa arkipäivää ja yhä useampi kuluttaja käyttää älypuhelinta väylänä internetiin. Mobiilimarkkinointi on yksi uusimmista markkinoinnin muodoista, joka kasvaa maailmanlaajuisesti. Teknologinen kehitys on vaikuttanut sekä kuluttajakäyttäytymiseen että kaupan alaan. Kaupunkikeskustojen pienet erikoisliikkeet taistelevat olemassaolostaan suuria ketjuliikkeitä ja ulkomaisia verkkokauppoja vastaan. Samaan aikaan maailman taloustilanne on epävakaa. Uusien teknologioiden, kuten mobiililaitteiden avulla perinteiseen kaupankäyntiin voidaan tuoda täysin uudenlaisia ulottuvuuksia. Tutkimuksen tarkoituksena oli kuvailla mikä on mobiilimarkkinoinnin merkitys kivijalkakaupoille ja mikä on mobiilimarkkinoinnin rooli kivijalkakaupan muiden markkinointitoimenpiteiden joukossa. Tutkimuksen teoriaosuus koostui kaupan alan ja pienten erikoisliikkeiden erityispiirteiden ja niihin vaikuttavien tekijöiden tarkastelusta. Mobiilimarkkinointia lähestyttiin kartoittamalla mobiililaitteiden kehitystä, keinoja ja merkitystä kuluttajien elämässä sekä mobiilimarkkinoinnin roolia verrattuna muihin medioihin. Empiirinen tutkimus toteutettiin laadullisena tutkimuksena, jonka aineisto kerättiin teemahaastatteluin. Tutkimuksen näkökulma oli kivijalkakauppiaiden näkökulma. Tutkimukseen osallistui kymmenen erikoiskaupan mikroyritystä Helsingin keskustan alueelta. Tutkimukseen osallistuneet yritykset olivat liittäneet yrityksensä osaksi UrbSpotter-mobiilisovellusta syksyllä 2015. Haastateltavat olivat yrityksen omistajia, työntekijöitä tai markkinointivastaavia. Mobiilimarkkinointi on merkityksellinen osa kaupunkikeskustojen pienten erikoisliikkeiden markkinointia ja sen rooli tulee kasvamaan tulevaisuudessa. Mobiilimarkkinointi tukee kaupan toimintaa ja muita markkinoinnin toimenpiteitä. Pienet erikoiskaupat saavuttavat mobiilimarkkinoinnin avulla uusia asiakkaita, ylläpitävät asiakassuhteita, vahvistavat asiakaspalvelua sekä rakentavat kaupan brändiä

Unexpected Levels of Biological Activity during the Polar Night Offer New Perspectives on a Warming Arctic

The current understanding of Arctic ecosystems is deeply rooted in the classical view of a bottom-up controlled system with strong physical forcing and seasonality in primary-production regimes. Consequently, the Arctic polar night is commonly disregarded as a time of year when biological activities are reduced to a minimum due to a reduced food supply. Here, based upon a multidisciplinary ecosystem-scale study from the polar night at 79 degrees N, we present an entirely different view. Instead of an ecosystem that has entered a resting state, we document a system with high activity levels and biological interactions across most trophic levels. In some habitats, biological diversity and presence of juvenile stages were elevated in winter months compared to the more productive and sunlit periods. Ultimately, our results suggest a different perspective regarding ecosystem function that will be of importance for future environmental management and decision making, especially at a time when Arctic regions are experiencing accelerated environmental change [1].

Förmågan att känna empati med skönlitterära karaktärer. : Högstadieelevers självrapporterade empatiska känslor för skönlitterära karaktärer

Syftet med studien var att undersöka sambandet mellan de upplevda empatiska känslorna för skönlitterära karaktärer och faktiska skönlitterära vanorna hos elever i två olika årskurs nio. Empiri samlades in med hjälp av enkäter som bygger på Swedish Core Affect Scale, vilket är en beprövad metod för att mäta självrapporterade känslor. Eleverna ombads att rapportera självvärderade känslor vid läsning av en novell, Stig Dagermans Att döda ett barn. Frågorna handlade om hur eleverna tror att några av karaktärerna i novellen känner sig samt hur eleverna själva känner sig när de läser novellen. Eleverna delades sedan in i tre grupper utifrån sina faktiska skönliterära vanor. Grupperna namngavs enligt följande: Läsande, ej läsande och intresserade ej läsande. Elevernas svar på frågorna kopplades samman med forskning inom området. Enligt Theory of minde så finns ett samband mellan att läsa skönlitteratur och förmågan att känna empati. Skönlitteratur tycks kunna bidra både till bildning och ett livslångt lärande som främjar empati och demokrati. Hos eleverna i studien så finns tendenser som visar på ett samband mellan att läsa skönlitteratur och att känna empati för skönliterära karaktärer.

O PAPEL DA COMUNICAÇÃO FACE A FACE NAS ORGANIZAÇÕES NO CONTEXTO DA SOCIEDADE MIDIATIZADA

Este estudo trata da comunicação face a face nas organizações sob diferentes abordagens teóricas. Considera a perspectiva da simultaneidade dos meios, já que as empresas utilizam diversos canais para dialogar com seus públicos de interesse. Leva em conta o fenômeno da midiatização, que reestrutura o modo como as pessoas se relacionam na sociedade contemporânea. O objetivo geral da pesquisa é sistematizar papeis potencialmente exercidos pela interação face a face e conhecer algumas circunstâncias que envolvem sua prática nas organizações. Por se tratar de uma tese teórica, a pesquisa bibliográfica se apresenta como um dos principais procedimentos metodológicos; análises de casos empíricos e um estudo de caso desenvolvido na Embrapa Pantanal constituem situações ilustrativas. Conclui-se que a comunicação face a face nas empresas ocorre de forma simultânea e combinada a outros canais de comunicação, porém, ela proporciona resultados práticos e filosóficos ainda pouco explorados. É rara a utilização estratégica de contatos presenciais como mecanismo para estabelecer relacionamentos, conhecer as reações alheias e ajustar a comunicação, aliar o discurso corporativo às práticas empresariais e avaliar o contexto onde se desenvolvem as interações, o que pode ser decisivo para a comunicação organizacional.