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Spectroscopic studies of random telegraph noise in InAs quantum dots in GaAs
We have observed and investigated random telegraph noise in the photoluminescence from InAs quantum dots in GaAs. The luminescence from a single quantum dot, exhibiting switching between two levels, has been spectrally resolved. The random telegraph noise is only observed in the presence of band filling. We find no spectral shift of the emission in the different states. It is only the intensity, m
Sound transmission of structures. A finite element approach with simplified room description
A theoretical prediction model for the sound insulation of a wall is an important tool when developing new wall structures. A full description of the entire room-wall-room system in a theoretical model for sound insulation is still today too computation-intensive, implying that the sound insulation at higher frequencies cannot be studied. Some simplifications must thus be introduced. The simplific
Reflecting on reflexivity: Reflexive textual practices in organization and management theory
This paper identifies four sets of textual practices that researchers in the field of organization and management theory (OMT) have used in their attempts to be reflexive. We characterize them as multi-perspective, multi-voicing, positioning and destabilizing. We show how each set of practices can help to produce reflexive research, but also how each embodies limitations and paradoxes. Finally, we
Right temporal lobe activation when listening to emotionally significant music
The cerebral activation when normal elderly participants (6 women, 6 men, M age = 70 years) listened to self-selected emotionally significant music was investigated. Musical memories and preferences were discussed in an interview, and a piece of music with great emotional significance to the participant was selected and later played during measurement of the regional cerebral blood flow (rCBF). Me
Serum antibody response to the heat shock protein 60 of Chlamydia trachomatis in women with developing cervical cancer.
Inconclusive results from an epidemiological study on dietary acrylamide and cancer.
Collagen type II (CII)-specific antibodies induce arthritis in the absence of T or B cells but the arthritis progression is enhanced by CII-reactive T cells.
Antibodies against type II collagen (anti-CII) are arthritogenic and have a crucial role in the initiation of collagen-induced arthritis. Here, we have determined the dependence of T and B cells in collagen-antibody-induced arthritis (CAIA) during different phases of arthritis. Mice deficient for B and/or T cells were susceptible to the CAIA, showing that the antibodies induce arthritis even in th
Increased risk of malignancies in a population-based study of 818 soft-tissue sarcoma patients.
Navigation by green turtles: which strategy do displaced adults use to find Ascension Island?
Sea turtles are known to perform long-distance, oceanic migrations between disparate feeding areas and breeding sites, some of them located on isolated oceanic islands. These migrations demonstrate impressive navigational abilities, but the sensory mechanisms used are still largely unknown. Green turtles breeding at Ascension Island perform long oceanic migrations (>2200 km) between foraging areas
IT and strategic decision making
A total of 41 top executive managers in large organizations/enterprises were interviewed about factors affecting their demands on, attitudes towards and use of, information and communication technology (ICT) when making strategic decisions in their work. Poor knowledge management, i.e. poor possibilities to store, reuse, and share knowledge in an organized and disciplined way due to inefficient IC
Laser-accelerated protons with energy dependent beam direction
The spatial distribution of protons, accelerated by intense femtosecond laser pulses interacting with thin target foils under oblique irradiation are investigated. Under certain conditions, the proton beams are directed away from the target normal. This deviation is towards the laser forward direction, with an angle that increases with the level and duration of the amplified spontaneous emission p
Spontaneous planning for future stone throwing by a male chimpanzee
Storminess variation during the last 6500 years as reconstructed from an ombrotrophic peat bog in Halland, southwest Sweden
Cores taken from an ombrotrophic peat bog in the coastal zone of Halland, southwest Sweden, were examined for wind transported mineral grains, pollen and humidity indicators. The core covers the period from 6500 cal. yr BP to present. Ombrotrophic conditions existed from ca. 4200 cal. yr BP onwards. Bog surface wetness fluctuated strongly until ca. 3700 cal. yr BP, with an apparent dominance of dr
GIP and GLP-1 normalize glucose tolerance by normalizing islet adaptation to insulin resistance without increasing glucose effectiveness in high-fat fed mice
Correlations between air levels of hexahydrophthalic anhydride (HHPA) and HHPA-adducted albumin tryptic peptides in nasal lavage fluid from experimentally exposed volunteers.
Optimization method for an ion exchange separation step
Biglycan and decorin bind close to the n-terminal region of the collagen VI triple helix
The binding of native biglycan and decorin to pepsin-extracted collagen VI from human placenta was examined by solid phase assay and by measurement of surface plasmon resonance in the BIAcore(TM)2000 system. Both proteoglycans exhibited a strong affinity for collagen VI with dissociation constants (K(D)) of approximately 30 nm. Removal of the glycosaminoglycan chains by chondroitinase ABC digestio
