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China has been a pioneer in including information and communication technologies for educational purposes (ICT4E) in national educational policies. Having recognized the role technology can play in education in the late 1990s, the country has by now emerged as an international leader in propagating the benefits of ICT4E. At the levels of the school and individual learner, however, ICT4E still play
In the context of recent climate change and increased anthropogenic activities in coastal areas, which both may have a negative impact on dissolved oxygen concentration, there is an increased interest to better understand the mechanisms and evolution leading to hypoxia in marine environments. The development of well calibrated proxies is crucial to obtain reliable environmental reconstructions of
In a previous 16-month seasonal study on living (stained) benthic foraminifera from two fjords on the Swedish west coast, it was reported that foraminifera proliferated in response to phytodetritus input; the strongest response came from the opportunistic species Stainforthia fusiformis. In this study, our objective was to find out if that phytodetritus input resulted in a change in the carbon iso
Författarna ger olika infallsvinklar på de gipsavgjutningssamlingar, ofta efter antika skulpturer, som byggdes upp i de nya publika konstmuseerna i Europa under 1800-talet. Dessa hade nära samband med konstakademiernas gipsavgjutningar och kom också att bidra till att universiteten byggde upp egna samlingar.
The Kattegat has, since the 1980s, been subject to extensive investigations focusing on various aspects of the marine environment. The most important reasons for this concentration of work are marine eutrophication, periodically occurring oxygen deficiency in the bottom-water and subsequent benthic mortality. In this study a previously not discussed sill area separating two deep areas in the Katte
This paper explores how policy makers argue for the importance of digital competence in Swedish teacher education. A policy analysis of key policy documents from the government and from government-affiliated organisations from the time period 2011–2016 is conducted using Carol Bacchi’s ‘what’s the problem represented to be?’ approach. The paper critically examines underlying assumptions and partic
Background: Quality of life (QOL) has become an important complementary endpoint in cancer clinical studies alongside more traditional assessments (eg, tumour response, progression-free survival, overall survival). Niraparib maintenance treatment has been shown to significantly improve progression-free survival in patients with recurrent ovarian cancer. We aimed to assess whether the benefits of e
Artikeln behandlar gipsavgjutningens betydelse i de europeiska konstmuseerna, konstakademierna och universiteten under 1800-talet och hur synen på dem förändras radikalt under 1900-talet som en följd av ett normativt skifte från idealism till autenticitetskrav.
Introduction Randomised controlled trials (RCTs) conducted using cohorts and routinely collected health data, including registries, electronic health records and administrative databases, are increasingly used in healthcare intervention research. The development of an extension of the CONsolidated Standards of Reporting Trials (CONSORT) statement for RCTs using cohorts and routinely collected heal
Artikeln behandlar gipsavgjutningssamlingar som ställts undan och förfallit på grund av ändrad konstsyn och politiska strömningar samt den renässans som de klassiska avgjutningssamlingarna fått i den postmoderna konsten från 1990-talet.
Lean blowout (LBO) is one of the major instability problems of premixed combustion. LBO equivalence ratio is a function of inlet temperature and pressure, mass flow or aerodynamic loading, and fuel composition. All these, except the last, vary during startup and with load. Developing gas turbine combustors capable of operating within wider range of fuel compositions requires extensive knowledge ab
Gas turbine systems are predominantly designed to be fuelled with gaseous fuels within a limited Wobbe index range (typically HHV=45-55 MJ/Nm3 or 1200-1480 Btu/scf). When low calorific fuel gases are fired, the engine will be forced to operate outside its design envelope. The added mass flow will typically raise the cycle pressure ratio and in two-shaft designs also raise the gas generator shaft s
A comparative experimental investigation has been performed, comparing the emissions from a synthetic jet fuel and from Jet AI. In the investigation, the unburned hydrocarbons were analyzed chemically and the regulated emissions of NOX, CO and HC were measured. All combustion tests were performed under elevated pressures in a gas turbine combustor rig. A Swedish company, Oroboros AB, has developed
Boken behandlar det äldsta statliga konstmuseet i Sverige, Kongl. Museum i Stockholms slott, med beaktande av dess tillkomsthistoria, samlingarnas ursprung och uppställning samt överförandet till Nationalmuseum i mitten av 1860-talet. Publikationen bygger på forskning om föremålen och dokumentation i arkiven och ger en helhetsbild som i flera avseenden korrigerar tidigare uppfattningar och ger en
The demand for gas turbines suitable for Low Btu gases is increasing worldwide. This paper presents a theoretical and experimental investigation of the flammability limits of Low Btu gases for gas turbine applications. Most modern gas turbines utilize premixed combustion, making it important to know at which fuel-air ratio the flame extinguishes. The flammability limit for a gaseous fuel is a prop
