Sökresultat

Small-bodied vertebrates sometimes evolve gigantism on islands, but there is a lack of consistent association with ecological factors or island characteristics. One possible reason is that, even if the ecological conditions are right, body size might fail to diverge on islands that were isolated recently or if there is gene flow between islands and the mainland. We studied body size, ventral colou

A new approach to understanding the interaction between cortical areas is provided by a mathematical analysis of biased competition, which describes many interactions between cortical areas, including those involved in top-down attention. The analysis helps to elucidate the principles of operation of such cortical systems, and in particular the parameter values within which biased competition oper

Currently, there is an intensive development of bio-based aromatic building blocks to replace fossil-based terephthalates used for poly(ethylene terephthalate) production. Indole is a ubiquitous aromatic unit in nature, which has great potential as a bio-based feedstock for polymers or plastics. In this study, we describe the synthesis and characterization of new indole-based dicarboxylate monomer

— Cultural difference is a term often used when discussing problems in offshoring and offshore outsourcing, but only a few authors discuss solutions to bridge pointed out cultural gaps. In this paper earlier research is compared with an IT-manager perspective on experienced cultural differences. Cultural differences were found to include multiple dimensions: cultural distances, cognitive distances

Background Excess weight gain throughout adulthood can lead to adverse clinical outcomes and are influenced by complex factors that are difficult to measure in free-living individuals. Metabolite profiling offers an opportunity to systematically discover new predictors for weight gain that are relatively easy to measure compared to traditional approaches. Methods and results Using baseline metabol

Using resources shared within a social group – either in a cooperative or a competitive way - requires keeping track of own and others’ actions, which, in turn, requires well-developed short-term memory. Although short-term memory has been tested in social mammal species, little is known about this capacity in highly social birds, such as ravens. We compared ravens (Corvus corax) with humans in sp

This paper investigates the underlying cognitive processes of sound–color associations by connecting perceptual evidence from research on cross-modal correspondences to sound symbolic patterns in the words for colors in natural languages. Building upon earlier perceptual experiments, we hypothesized that sonorous and bright phonemes would be over-represented in the words for bright and saturated c

Sound symbolism emerged as a prevalent component in the origin and development of language. However, as previous studies have either been lacking in scope or in phonetic granularity, the present study investigates the phonetic and semantic features involved from a bottom-up perspective. By analyzing the phonemes of 344 near-universal concepts in 245 language families, we establish 125 sound-meanin

IDDM occurs predominantly among individuals being class II antigen HLA-DR 3 and/or 4 positive, while NIDDM is not associated with HLA-D. Although the HLA-DR 3 or 4 specificities are prerequisites for IDDM to develop, their high frequencies (about 60%) in the background population preclude tissue typing as a predictive test, underlined by the observation that less than 50% of monozygotic twins are

Beslutsfattare bör alltid vara skeptiska till universallösningar på sociala problem. Detta gäller inte minst BID-modellen, som har kritiserats bland annat för att skapa ett demokratiskt underskott i boendeområden, skriver forskare.

We optimize traffic signal timing sequences for a section of a traffic net-work in order to reduce congestion based on anticipated demand. The system relieson the accuracy of the predicted traffic demand in time and space which is carriedout by a neural network. Specifically, we design, train, and evaluate three differentneural network models and assert their capability to describe demand from tra

This paper is concerned with the authority of written documents and how these artefacts work as governance devices. Networked authority is introduced as a concept to elucidate how documents accumulate formal power in a collaborative process, where several formally independent but informally interdependent organisations together point out the direction of regional public transport planning in the f