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Extrachromosomal RNA-DNA complex containing long telomeric repeats in chironomids.
We have analysed an extracted RNase sensitive fraction containing telomeric repeat sequences in the telomerase negative dipteran Chironomus tentans. It shows a slow and well-defined electophoretic migration corresponding to > 20 kb and is sensitive not only to RNase, but also to DNase. It hybridizes to both strands of the telomeric repeat with about equal intensities. DNA is probably the dominant
Identification in the Presence of Drift
Sensory ecology of feeding in the hummingbird hawkmoth Macroglossum stellatarum (Lepidoptera : Sphingidae)
The European hummingbird hawkmoth, Macroglossum stellatarum (Linnaeus 1758), drinks nectar while hovering in front of flowers of all colours, odours, sizes and shapes. Naive moths orient predominantly towards visual stimuli and prefer blue flowers with a radial pattern and a central contrasting spot. Hummingbird hawkmoths have trichromatic colour vision and can learn any colour and different patte
Atmospheric and river transport of hydrophobic, organic pollutants to the Baltic Sea
Antimicrobial activity of histidine-rich peptides is dependent on acidic conditions.
Synthetic peptides composed of multiples of the consensus heparin-binding Cardin and Weintraub sequences AKKARA and ARKKAAKA are antimicrobial. Replacement of lysine and arginine by histidine in these peptides completely abrogates their antimicrobial and heparin-binding activities at neutral pH. However, the antibacterial activity against Gram-negative (Escherichia coli, Pseudomonas aeruginosa) an
The ever-changing Barum grave.
Tankar om våld och film
Analys av våldskildringar i amerikansk film, bland annat i Tjuren från Bronx (raging Bull, 1980)
The effect of pneumatic antishock garments in the treatment of lethal combined hepatic and caval injuries in rats.
Few electron double quantum dots in InAs/InP nanowire heterostructures
We report on fabrication of double quantum dots in catalytically grown InAs/InP nanowire heterostructures. In the few-electron regime, starting with both dots empty, our low-temperature transport measurements reveal a clear shell structure for sequential charging of the larger of the two dots with up to 12 electrons. The resonant current through the double dot is found to depend on the orbital cou
Bra musikprogram behöver inte kosta skjortan
A Global Clean Cooking Fuel Initiative
Sensory and rheological screening of exopolysaccharide producing strains of bacterial yoghurt cultures
Yoghurts were produced with 24 different cultures differing in their ability to produce exopolysaccharides (EPS). Rheological and sensory analyses showed large differences in texture properties in the yoghurt samples. EPS production was found to have a major effect oil the texture properties, but varying textures within the EPS +/- groups were also found. Yoghurts fermented with EPS-producing cult
A comprehensive survey of mutations in the OPA1 gene in patients with autosomal dominant optic atrophy
PURPOSE. To characterize the spectrum of mutations in the OPA1 gene in a large international panel of patients with autosomal dominant optic atrophy (adOA), to improve understanding of the range of functional deficits attributable to sequence variants in this gene, and to assess any genotype-phenotype correlations. METHODS. All 28 coding exons of OPA1, intron-exon splice sites, 273 bp 5' to exon 1
Flexible composites, strength, deformation, and fracture processes. 1. Reinforcement structures and tensile strength
Fiber-reinforced flexible composites are extensively used for different kinds of applications, for example, tubes, drive belts, tires, and coated fabrics. Typical for these materials are matrix materials allowing large strain deformation and reinforcement structures allowing bending. Apart from the tensile strength and limited bending stiffness, damage resistance and ductile-brittle transition cha
Reducing Power Consumption with Selected Orthogonal Signals
Mapping of human serum-reactive epitopes in virus-like particles of human papillomavirus types 16 and 11.
Sperm concentration in Latvian military conscripts as compared with other countries in the Nordic-Baltic area
Recent studies of semen quality in men from the general population gave rise to the hypothesis of an East-West gradient in semen quality in the Nordic-Baltic area, with the highest sperm counts in Estonia, Lithuania and Finland, and the lowest in Denmark (30% difference in mean concentration). Genetic, lifestyle-related and environmental factors - alone or in combination - were suggested to be res
The life cycle of Gonyostomum semen (Raphidophyceae)
Gonyostomum semen (Raphidophyceae) is today one of the most common flagellates in humic lakes ill Sweden and appears regularly in 30% of these lakes. The first mass development of this alga was recorded in 1948 in Lake Helgasjon, South Sweden. In this paper the life cycle of Gonyostomum is described for the first time. During the winter Gonyostomum survived as resting cysts on the surface of the b
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Recent advances in technology, including computerized analysis, have renewed interest in pharyngeal manometry. Simultaneous fluoroscopy and videography have been recommended by many authors. This article reviews the history of pharyngeal manometry and highlights some of the technical difficulties involved. We also report the current status of the simultaneous technique and summarize our own result