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Vision in the dimmest habitats on Earth

A very large proportion of the world's animal species are active in dim light, either under the cover of night or in the depths of the sea. The worlds they see can be dim and extended, with light reaching the eyes from all directions at once, or they can be composed of bright point sources, like the multitudes of stars seen in a clear night sky or the rare sparks of bioluminescence that are visibl

Plasma fibrinogen level and the risk of major cardiovascular diseases and nonvascular mortality: an individual participant meta-analysis

CONTEXT: Plasma fibrinogen levels may be associated with the risk of coronary heart disease (CHD) and stroke. OBJECTIVE: To assess the relationships of fibrinogen levels with risk of major vascular and with risk of nonvascular outcomes based on individual participant data. DATA SOURCES: Relevant studies were identified by computer-assisted searches, hand searches of reference lists, and personal c

NIR spectroscopy on moving solids using a scanning grating spectrometer - impact on multivariate process analysis

The effect of sample movement on spectral response during fiber probe diffuse reflectance near-infrared spectrometry (NIR) sampling was characterized. This is of central importance in Process Analytical Chemistry (PAC) and Process Analytical Technology (PAT). The incitement to this study was the observation of spectral artifacts during measurements of powder samples in process streams when using a

Using computer simulation to assist in the robustness analysis of an ion-exchange chromatography step

This paper presents a methodology to gain process knowledge and assist in the robustness analysis of an ion-exchange step in a protein purification process using a model-based approach. Factorial experimental design is common practice in industry today to obtain robustness characterization of unit operations with respect to variations in process parameters. This work aims at providing a better ins

Rheumatoid arthritis: The role of reactive oxygen species in disease development and therapeutic strategies

Autoimmune diseases such as rheumatoid arthritis (RA) are chronic diseases that cannot be prevented or cured. If the pathologic basis of such diseases would be known, it might be easier to develop new drugs interfering with critical pathways. Genetic analysis of animal models for autoimmune diseases can result in discovery of proteins and pathways that play a key function in pathogenesis, which ma

Taxpayers' responsiveness to tax rate changes and implications for the cost of taxation in Sweden

Historically, labor supply elasticities have been used to evaluate tax policy and predict tax revenue effects. They are likely to underestimate taxpayers' response to tax rate changes, and hence to underestimate changes in potential tax revenues, however, because they measure only how taxpayers alter hours worked. Taxpayers can also respond to tax rate changes by altering, for instance, their work

Metabolites from endophytes of the medicinal plant Erythrina crista-galli

Erythrina crista-galli (Fabaceae) is used in Argentinean ethnopharmacology as anti-inflammatory medication, narcotic, desinfectant, and for the treatment of wounds. The common name of the tree is "ceibo" or coral tree. The dominating endophytes in E. crista-galli all belong to the genus Phomopsis as identified by microscopic features and the analysis of their ITS sequences. To investigate a possib

Element association and morphology in some middle Ordovician platform-equipped conodonts

Conodont elements other than those with platform ledges along the processes have often been unrecognized or disregarded in reconstructions and phylogenetic discussions of Ordovician "platform conodont genera." The platform elements are larger than the other element types and often exhibit more rapid evolutionary changes in morphology. Nevertheless, to understand the evolution of, and relationships

Narrow photoemission lines from graphite valence states

Valence-band photoelectron angular distributions, measured in the photon energy range 20-150 eV, are obtained from crystalline graphite overlayers prepared by heating SiC(0001) and from a graphite natural single crystal. The dispersion of the valence bands for the overlayers agrees well with that of the single crystal. The valence electrons have binding energies, which agree with LDA calculations

Utformning av talade utrymningsmeddelanden - erfarenheter från en enkätundersökning och oannonserade utrymningsförsök

The purpose of the present study was to investigate how pre-recorded fire evacuation messages should be designed and presented in order to be effective. Five different messages were tested in the study. Visitors at an IKEA store in Malmö, Sweden, evaluated all the messages. The visitors listened to one message each and were interviewed about their associations. They also filled out a questionnaire

Review of Gerhard Besier, Die Kirchen und das Dritte Reich. Spaltungen und Abwehrkämpfe 1934-1937. Berlin 2001

Boken utgör fortsättningen på Klaus Scholders två inledande band (1918-34 resp. 1934). Omfånget är överväldigande (1262 sidor, enbart noterna 261 sidor). Här analyseras de olika faserna i den fortsatta kyrkokampen, evangeliskt och romersk-katolskt var för sig. Vidare behandlas bland annat den för svenska läsare bekanta Lutherakademien i Sondershausen, raslagarna och steriliseringsfrågan, men också

Detection of cardiac pathology: time intervals and spectral analysis.

AIM: To develop an objective diagnostic method that facilitates detection of noncyanotic congenital heart diseases. METHODS: Heart sounds and murmurs were recorded from 60 healthy children and 173 children with noncyanotic congenital heart disease. Time intervals were measured and spectrum of the systolic murmurs analyzed. Stepwise logistic regression analysis was used to distinguish physiological

Gender differences in the electrophysiological characteristics of atrioventricular conduction system and their clinical implications

OBJECTIVE: The underlying mechanisms of the differences in sex distribution of patients with atrioventricular (AV) nodal re-entrant tachycardia and Wolff-Parkinson-White syndrome are poorly understood. The objective of this study was to determine potential gender differences in the electrophysiological properties of the normal AV conduction system that may be attributable to differences in sex dis