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Many filamentous organisms, such as fungi, grow by tip-extension and by forming new branches behind the tips. A similar growth mode occurs in filamentous bacteria, including the genus Streptomyces, although here our mechanistic understanding has been very limited. The Streptomyces protein DivIVA is a critical determinant of hyphal growth and localizes in foci at hyphal tips and sites of future bra
Migration causes temporal and energetic constraints during plumage development, which can compromise feather structure and function. In turn, given the importance of a good quality of flight feathers in migratory movements, selection may have favoured the synthesis of feathers with better mechanical properties than expected from a feather production constrained by migration necessities. However, n
This article reflects on issues of globalisation and representation in contemporary visual culture.
Differences in national legislations can affect the international competitiveness of an industry. For example, stringent EU regulations on animal welfare and environmental protection are often said to be a cost disadvantage for EU producers competing on the global market. However, in recent years, powerful retailers and food processors have started to impose requirements on downstream producers th
The tightened security restrictions after the “911” terrorist attacks must clearly have repercussions for privacy, almost regardless of how this term is conceptualised. The notably fluid essentials of the privacy-term makes it hard to evaluate the actual impact of new regulation as a shared point of reference is in fact lacking (its definition has been a popular topic for vicious debate and acute
By examining all emission lines of Fe II in high resolution satellite spectra of the symbiotic star RR Tel we have made a systematic study of fluorescence lines in the ultraviolet wavelength region 1200-3000 Å. We list 33 energy levels of Fe II that are selectively excited in the stellar system by photons from strong lines of H, He II, Si III, O III, C IV, O V, Ne V, and O VI. All energy levels li
WHO estimated in 2002 that 1.4 million children in the world would die from preventable diseases (World Health Organization, 2010). Each child is, or should be, immunized according to their national immunization schedule, which regulates i.e. vaccines and doses. Problems emerge when immigrant children should be transferred from one national vaccination schedule into another. This problem is quite
The degradation of live plant biomass in fungus gardens of leaf-cutting ants is poorly characterised but fundamental for understanding the mutual advantages and efficiency of this obligate nutritional symbiosis. Controversies about the extent to which the garden-symbiont Leucocoprinus gongylophorus degrades cellulose have hampered our understanding of the selection forces that induced large scale
BACKGROUND: We compared the association of levosimendan or dobutamine with norepinephrine for the maintenance of systemic and hepatosplanchnic perfusion during early endotoxemic shock. METHODS: Twenty anesthetized pigs (26.8 +/- 0.5 kg) were instrumented with flow probes and catheters to monitor systemic and regional perfusion as described in our companion article in this issue of the journal. Two
The Ordovician is an important period in the Phanerozoic, with remarkable faunal turnovers, several major carbon isotope excursions, and shifting climate. The strata of this time period not only re-veal these events but also provide useful information about the palaeoclimate and sea-level. The Boren-shult-1 core form Östergötland, southern Sweden constitutes a complete succession of the upper Midd
Since mid-2000s, a great emphasis of the global development agenda is directed toward women and their participation in society, especially as wageworkers and political actors. Hand-in-hand with this emphasis on women’s empowerment and gender equality as the ‘solution’ for development, the involvements of private actors in the development arena have increased as well. The notion of private corporat
This paper searches for the answer to the question: why did the argentinian writer Jorge Luis Borges include the university town of Lund and the character Nils Runeberg in his short story "Tres versiones de Judas" (Three versions of Judas) in his short story collection "Aleph" (The Aleph) published in 1949? A single conclousion isn't met, but the paper produces multiple rea
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This study examines equity and governance issues in rural drinking water supply (RDWS) in Uttar Pradesh, North India, in the context of the current decentralisation reforms in the sector. It reviews the available literature on decentralisation and illuminates different perspectives and arguments to provide a rationale for understanding the reform initiatives in Uttar Pradesh. The study then analys
