Background: Performance of migrating birds can be affected by a number of intrinsic and extrinsic factors like morphology, meteorological conditions and migration strategies. We compared travel speeds of four raptor species during their crossing of the Sahara desert. Focusing the analyses on this region allows us to compare different species under equivalent conditions in order to disentangle whic

This essay discusses Universal Grammar (UG) and the materialization of internal and external language (commonly misconceived of as “lexicalization”). It develops a few simple but central ideas. First, the Universal Lexicon (the “lexical” part of UG) contains two elements: an initial root, Root Zero, and an initial functional feature, Feature Zero, identified as the Edge Feature (zero as they are v

The cliff-edge hypothesis introduces the counterintuitive idea that the trait value associated with the maximum of an asymmetrical fitness function is not necessarily the value that is selected for if the trait shows variability in its phenotypic expression. We develop a model of population dynamics to show that, in such a system, the evolutionary stable strategy depends on both the shape of the f

The Geological Society of America has sponsored versions of the geologic time scale since 1983. Over the past 30 years, the Geological Society of America Geologic Time Scale has undergone substantial modifications, commensurate with major advances in our understanding of chronostratigraphy, geochronology, astrochronology, chemostratigraphy, and the geomagnetic polarity time scale. Today, many part

‘The model of crisis’ is a culturally shared and widespread idea of ​​human reactions to a number of misfortunes, such as accidents, diagnosis of disease, divorces, becoming a parent of a disabled child, etc. The crisis model conveys the idea of coming to terms with unwanted experiences while advancing through different “phases”, for example phases of “denial”, “processing”, and “acceptance”. The

The introduction of the laparoscope was a milestone within gynecologic surgery. Despite evidence of better perioperative outcome compared to laparotomy, laparoscopy is mostly performed for less advanced surgical procedures and the uptake of laparoscopic hysterectomy has been slow. An effort to preserve the clinical benefits of laparoscopic surgery and facilitate the performance of more advanced su

This paper describes the performance evaluation of new Delta E detectors to be used as pre-cell hit detectors in living cell irradiation experiments at the Lund Ion Beam Analysis facility (LIBAF). Using these detectors with a thickness down to 4.15 mu m fabricated at Lund University, an experiment was setup in which Delta E-detectors were used together with a stop E-detector in a telescope system

Abstract in SpanishEl control basado en reglas (RBC - Rule-Base Control) para un cami-nado “normal” de una prótesis transfemoral fue desarrollado para suimplementación en un microcontrolador. Se presentan las ventajasal utilizar este tipo de control sobre métodos analíticos, así como los resultados obtenidos de los análisis del ciclo de marcha, la genera-ción de reglas, la estructura de programaci

Results of three searches are presented for the production of supersymmetric particles decaying into final states with missing transverse momentum and exactly two isolated leptons, e or mu. The analysis uses a data sample collected during the first half of 2011 that corresponds to a total integrated luminosity of 1 fb(-1) of root s = 7 TeV proton-proton collisions recorded with the ATLAS detector

The rather thin outermost layer of the mammalian skin, stratum corneum (SC), is a complex biomembrane which separates the water rich inside of the body from the dry outside. The skin surface can be exposed to rather extreme variations in ambient conditions (e.g. water activity, temperature and pH), with potential effects on the barrier function. Increased understanding of how the barrier is affect

Background/Aims: Fast-track programs involving multi-modal measures to enhance recovery after surgery, reduce morbidity and decrease hospital length of stay (LOS) are used for different major surgical procedures. For liver resections, factors influencing LOS within a fast-track program have been studied only to a limited extent, which was the aim of the present study. Methodology: The present stud

In green photosynthetic bacteria, the chlorosome baseplate mediates excitation energy transfer from the interior of the light-harvesting chlorosome toward the reaction centers. However, the electronic states of the baseplate remain unexplored, hindering the mechanistic understanding of the baseplate as an excitation energy collector and mediator. Here we use two-dimensional spectroscopy to study t

Intestinal ischemia after cardiac surgery is a rare but severe complication with a high mortality. Early surgery can be lifesaving. The aim was to analyze the incidence, outcome, and risk factors for these patients.

We describe the transmission of hepatitis C virus (HCV) to two patients from a thoracic surgeon who was unaware of his hepatitis C infection. By partial sequencing of the non-structural 5B gene and phylogenetic analysis, the viruses from both patients were found to be closely related to genotype la strain from the surgeon. Two further hepatitis C cases were found in relation to the thoracic clinic

Many environmental strategies relying on a mere improvement of resource productivity and eco-efficiency of processes and products are not able to fully address the environmental impacts induced by increasing consumption. In addition to these strategies, the concept of sustainable consumption calls for changing the levels and patterns of consumption, which require complimentary approaches. However,

N. antarctica occurs in the widest range of habitat types among all South American Nothofagus. The aim of this Study is to investigate adaptive responses by variation in morphological (tree form and leaf characters), and environmental traits (soils) of the polymorphic N. antarctica. Also we analyze the effect of genetic drift and limited gene flow in such predominantly apomict by means of neutral