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Irrigation is the largest sector of human water use and an important option for increasing crop production and reducing drought impacts. However, the potential for irrigation to contribute to global crop yields remains uncertain. Here, we quantify this contribution for wheat and maize at global scale by developing a Bayesian framework integrating empirical estimates and gridded global crop models

Did economic and political inequality hamper the spread of mass schooling in the 19th century? This paper analyzes the link between investments in primary schooling and the spread of voting rights in 19th-century Sweden using newly collected data on educational expenditure and the distribution of voting rights in local governments. We find that municipalities governed by local elites spent substan

The citations of highly cited papers in the life sciences published in 1986 and 2000 was examined to determine the extent to which early impact predicts long term impact. Linear correlation between early and post-peak impact was found to be about 0.7

The humoral immune response to a T cell dependent protein antigen will over time generate antibodies with an increased affinity to the antigen. This is due to a process known as affinity maturation and proceeds in a, for this purpose, well designed micro-milieu within secondary lymphoid organs known as germinal centres. The increase in affinity of an antibody in, e.g. mouse and man is due mainly t

A new Regulation on nutrition and health claims came into force in 2007 with implementation during a three-year period and will harmonise this area within the European Community. It makes provision for health claims on foods, including reduction of disease risk claims, and thus recognises the importance of food and nutrition for health. Member states have provided suggestions for claims regarding

Popular Abstract in Swedish Otillfredsställande inandningsluft på bl a arbetsplatser har satts i samband med utveckling av olika akuta och kroniska symptom såsom allergi, astma och kronisk bronkit. Vi vet att bakterier och svamp producerar ett stort antal ämnen som verkar irriterande eller är allergiframkallande. Misstankar har därför riktas mot olika mikrobiologiska ämnen i luften såsom endotoxinInhalation of air-borne microorganisms and components thereof can cause illnesses and diseases. However, lack of specific and sensitive methods for exposure assessment can pose problems in predicting health outcomes. Characterization of microbial load from indoor environments using gas chromatography-mass spectrometry (GC-MS) and/or tandem mass spectrometry (GC-MSMS) as well as various bioassays (

The chapter studies the relationship between inequality and institutional change in the long-run. The key message is that societies change slowly and unpredictably because of path dependency of economic, political, and social institutions. Prevalent inequalities between different groups rooted in history may help to explain why change does not take place. This has implications for the results that

Yta är, paradoxalt nog, ofta något grundläggande i receptet för framgång i dagens ekonomiska system. Utseende, klädsel, attityd och attribut är centrala element i det som Erving Goffman kallar impression management: förmågan att avge ”rätt” intryck med hjälp av välformulerade självpresentationer som, baserade på statussymboler och associationer, indikerar vem man är eller vill vara (se Goffman 195

This chapter provides a physical background to the following ones. It describes the particle and wave properties of light, and the diffraction, polarization, refraction, reflection, and absorption of light, statistics of photon emission and absorption. Planck's law of heat radiation is described in various mathematical and graphical ways. One section is devoted to a simplified description of the p

Based on high-resolution spectra obtained with the MIKE spectrograph on the Magellan telescopes we present detailed elemental abundances for 64 red giant stars in the inner and outer Galactic disk. For the inner disk sample (4-7 kpc from the Galactic centre) we find that stars with both thin and thick disk abundance patterns are present while for Galactocentric distances beyond 10 kpc, we only fin